Council of Scientific and Industrial Research, Ministry of Science and Technology, GOI
CSIR-Indian Institute of Chemical Technology
Careers   Tenders   e-Pay   RTI   Webmail   हिंदी में

Skip Navigation Links

Dr. S. Chandrasekhar FNASc, FASc, FNA


S.No Author (S) Title Journal
268 Kiranmai Nayani, Radhika Cinsani, Anwar Hussaini SD, Prathama S. Mainkar and Srivari Chandrasekhar* Brønsted Acid Catalysed Domino Aza-Piancatelli Rearrangement/ Michael Reaction: Construction of 1,4-Benzodiazepin-5-ones in One-Pot Eur. J. Org. Chem. 2017, 10.1002/ejoc.201700957
267 Srinu Paladugu, Prathama S. Mainkar and Srivari Chandrasekhar* Synthesis of Complete Carbon Framework of Baulamycin A Tetrahedron Letters 2017, 58, 2784-2787
266 Navya Goli, Prathama S. Mainkar, Sudha Sravanti Kotapalli, Tejaswini K, Ramesh Ummanni, Srivari Chandrasekhar* Expanding the tetrahydroquinoline pharmacophore Bioorganic & Medicinal Chemistry Letters, 2017, 27, 1714-1720
265 Pantapalli M. Anitha, Prathama S. Mainkar, Shivakrishna Kallepu, V. S. Phani Babu, Cirandur Suresh Reddy and Srivari Chandrasekhar* Caveat in the stereochemical outcome of the organocatalytic Diels–Alder reaction in PEG-400 RSC Adv., 2016,6, 76132-76136
264 P.S. Mainkar, V. Chippala, R. Chegondi, S. Chandrasekhar* Ruthenium(II)-Catalyzed Hydration of Terminal Alkynes in PEG- 400 Synlett 2016, 27(13): 1969-1972
263 K. Nagaraju, R. Chegondi, S. Chandrasekhar* Expanding Diversity without Protecting Groups: (+)-Sclareolide to Indolosesquiterpene Alkaloid Mycoleptodiscin A and Analogues Org. Lett. 2016, 18, 2684-2687
262 R. Kranthikumar, R. Chegondi, S. Chandrasekhar* Insertion of N-Tosylacetimidates/Acetimidamides onto Arynes via [2 + 2] Cycloaddition J. Org. Chem. 2016, 81, 2451-2459.
261 J. Ruiz, N. Karre, T. Roisnel, S, Chandrasekhar, Srivari; R. Gree From Protected ß-Hydroxy Acylsilanes to Functionalized Silyl Enol Ethers and Applications in Mukaiyama Aldol Reactions Eur. J. Org. Chem 2016, 2016(4), 773-779
260 Ch. Praveen Kumar, Reddy, T. Srinivasa; P. S. Mainkar, V. Bansal, R. Shukla, S. Chandrasekhar, H. M. Hugel Synthesis and biological evaluation of 5, 10-dihydro-11H-dibenzo[b,e][1,4]diazepin-11-one structural derivatives as anti-cancer and apoptosis inducing agents Eur. J. Med. Chem, 2016, 108, 674-686
259 R. R. Anugu,P.S. Mainkar, B. Sridhar, S. Chandrasekhar* The Ireland-Claisen rearrangement strategy towards the synthesis of the schizophrenia drug, (+)-asenapine Org. Biomol. Chem. 2016, 14, 1332-1337
258 B. Surender Reddy, A. Srirama Murthy P. S. Mainkar and S. Chandrasekhar* Pruning of Biomolecules and Natural Products (PBNP): An Innovative Paradigm in Drug Discovery Org. Biomol. Chem 2015, 13, 6432-6448
257 Lahu N. Chavan, Ch. Rambabu, S. Chandrasekhar* Tandem organocatalytic approach to  C28-C35 fragment of eribulin mesylate Tetrahedron Letters 2015, 56, 4286-4288
256 N. Lavanya, N. Kiranmai, P. S. Mainkar and S. Chandrasekhar* A practical synthesis of C14-C26 fragment of anticancer drug, eribulin mesylate Tetrahedron Letters 2015, 56, 4283-4285
255 A. Srirama Murthy and S. Chandrasekhar* Practical and stereoselective synthesis of [6, 6, 5]-tricyclic core (C1-C13) of eribulin mesylate Tetrahedron Letters 2015, 56, 4280-4282
254 N. Kavitha and S. Chandrasekhar* Scalable synthesis of the unusual amino acid segment (ADMOA unit) of marine anti-inflammatory peptide: solomonamide A Org. Biomol. Chem 2015, 13, 6242-6248
253 Johal Ruiz, A.Srirama Murthy, Thierry Roisnel, S. Chandrasekhar, and R. Gree Alpha-Hydroxyallylsilanes as Propionaldehyde Enolate Equivalents and their Use towards Iterative Aldol Reactions J. Org. Chem. 2015, 80, 2364-2375
252 W. Ahmed, P. S. Mainkar, P. Srihari and S. Chandrasekhar* Total Synthesis of thromboxane receptor antagonist, Terutroban Org. Biomol. Chem 2015, 13, 2951-2957
251 M. Sailu, S. S. Muley, Amitava Das, P. S. Mainkar and S. Chandrasekhar* Formal total synthesis of (±)-rhazinal and its B-ring carbamate analogue Tetrahedron 2015, 55, 1276-1282
250 K. Nagaraju, P. S. Mainkar and S. Chandrasekhar* Convergent synthesis of fully functionalized decalin skeleton of (+)-fusarisetin A Tetrahedron Letters 2015, 56, 404-405
249 T. Naresh, T. Pavan Kumar, K. Haribabu and S. Chandrasekhar* AZT-prolinamide: the nucleoside derived pyrrolidine catalysts for asymmetric aldol reactions using water as solvent Tetrahedron: Asymmetry 2014, 25, 1340-1345
248 S Chandrasekhar* V Patro, L N. Chavan, Rambabu Ch and R Grée Multicomponent Reactions in PEG-400: Ruthenium-Catalyzed Synthesis of Substituted Pyrroles Tetrahedron Letters 2014, 55, 5932-5935
247 L Radhika and S Chandrasekhar* Synthesis of the Southern tripeptide (C1-N12) of Sanglifehrins using asymmetric organocatalysis Synth. Commun. 2014, 44, 3602-3609
246 S Khatun, P S.Mainkar and S Chandrasekhar* Asymmetric synthesis of C11-C23 fragment of Pladienolide B Ind. J. Chem. 2014, 53B, 717-722
245 C Sridhar, B V. D. Vijaykumar, L Radhika, D-S Shin,* and S Chandrasekhar* Asymmetric Formal Synthesis of (+)-Lactacystin Eur. J. Org. Chem. 2014, 6707-6712
244 S Chandrasekhar*C Praveen Kumar,T Pavan Kumar,K Haribabu, B Jagadeesh,* J K. Lakshmi and P S. Mainkar* Peptidomimetic 'Click' Organocatalyst: Efficient Michael Addition of Ketones onto Nitroolefins with Very Low Catalyst Loading RSC Adv. 2014, 4, 30325 - 30331
243 S Chandrasekhar* K  Sathish,  G Pavan Kumar Reddy and P S.Mainkar* Total Syntheses of Arenamides A, B and C Tetrahedron: Asymmetry 2014, 25, 348-355
242 G PavanKumar Reddy, A S Murthy, J. S Reddy, S Das, T Roisnel, J S. Yadav, S Chandrasekhar and  R Grée* Studies towards 1,3-diol units starting from syn-b-hydroxy acylsilanes Tetrahedron Letters 2014, 55, 365-368
241 F Malchers,*, F Dietlein,*, J Schöttle, X Lu, L C. Heukamp, L Nogova, J Wolf, K Albus, L Fernandez-Cuesta, J M. Heuckmann, O Gautschi, J Diebold, D Seidel, F Leenders, A Richters, M Peifer, A Florin, P S. Mainkar, Nagaraju K, S Chandrasekhar, J George, S Cell-autonomous and non-cell-autonomous mechanisms of transformation by amplified FGFR1 in lung cancer Cancer Discovery 2014, 4, 246-257
240 S Chandrasekhar* K V M Rao, M Seenaiah, P Naresh, A Sharada Devi and B Jagadeesh* Formation of periodic g-turns in a/b-hybrid peptides: DFT and NMR experimental evidence Chem. Asian J. 2014, 9, 457-461
239 N Kavitha, V Praveen Kumar, C Suresh Reddy and S Chandrasekhar* Total synthesis of (–)-seimatopolide A Tetrahedron: Asymmetry 2013, 24, 1576-1582
238 A Srirama Murthy, T Roisnel, S Chandrasekar and R Grée* New b-hydroxy acylsilane-derived building blocks and their use in the synthesis of oxygen-containing heterocycles Synlett 2013, 24, 2216-2220
237 J Mahesh Kumar, M M. Idris, G Srinivas,  P Vinay Kumar, V Meghah, M Kavitha, Ch Raji Reddy, P S. Mainkar, B Pal, S Chandrasekar and  N Nagesh* Phenyl 1,2,3 triazole thymidine ligands stabilize G-quadruplex DNA, inhibit DNA synthesis and potentially reduce tumor cell proliferation over 3’Azido deoxythymidine PLOS ONE 2013, 8, e70798
236 M Jacolot, M Jean, Naresh T, A Bondon, S Chandrasekhar, and P van de Weghe* Synthessis of Stachybotrin C and all of its stereoisomers: Structure revision J. Org. Chem. 2013, 78, 7169-7175
235 B. Mahipal, A Singh,   Ramesh U and S Chandrasekhar* Total synthesis of 5-epi-Torrubiellutin C and its biological evaluation RSC Advances 2013, 3, 15917-15927
234 V. Praveen Kumar, N. Kavitha and S. Chandrasekhar* Stereoselective total syntheses of attenols A and B Eur. J. Org. Chem. 2013, 6325-6334
233 V. Praveen Kumar and S. Chandrasekhar* Enantioselective synthesis of Pladienolide B and truncated analogues as new anti-cancer agents Organic Letters 2013, 15, 3610-3613
232 N. Kavitha, G. Sukumar, V. Praveen Kumar, P. S. Mainkar and S Chandrasekhar* Ruthenium-catalyzed imidazoisoquinoline synthesis via oxidative coupling of 2-arylbenzimidazoles with alkynes Tetrahedron Letters 2013, 54, 4198-4201
231 M. Kavitha, B. Mahipal, P. S Mainkar and S. Chandrasekhar* Synthesis of 1,4,5-Trisubstituted 1,2,3-Triazoles Amicable for Automation Comb. Chem. and High Throughput Screening 2013, 16, 657-663
230 N. Kesava Reddy and S. Chandrasekhar* Total Synthesis of (-)-a- Kainic acid via Chirality Transfer through Ireland – Claisen Rearrangement J. Org. Chem. 2013, 78, 3355-3360
229 G. PavanKumar Reddy, J. S Reddy, S. Das, T. Roisnel, J. S. Yadav, S. Chandrasekhar, and R. Grée Synthesis of Acylsilanes via Nickel-Catalyzed Reactions of a-Hydroxyallylsilanes Organic Letters 2013, 15, 1524-1527
228 N. Kavitha, V. Praveen Kumar and S. Chandrasekhar* Towards Solomonamide A: Asymmetric synthesis of the unusual amino acid part Tetrahedron Letters 2013, 54, 2128-2130
227 P S. Mainkar, C Sridhar, A Sudhakar and S Chandrasekhar* Synthesis and self-assembly of ß-amino acid/alcohol based Bolaamphiphiles Helv. Chim. Acta. 2013, 96, 99-108
226 S. Chandrasekhar* G. Rajesh and T. Naresh Enantioselective synthesis of the C5-C23 segment of Biselyngbyaside Tetrahedron Letters 2013, 54, 252-255
225 D. H. Mac, S. Chandrasekhar and R. Grée Total Synthesis of Gabosines Eur. J. Org. Chem. 2012, 5881-5895
224 S. Chandrasekhar* V Patro, Pavan Kumar Reddy G  and R Grée* A ligand - free copper (II) - catalyzed three - component reaction in  poly(ethylene glycol) medium: A versatile protocol for the production of 3-indole derivatives Tetrahedron Letters 2012, 53, 6223-6225
223 D H Mac, A Sattar, S Chandrasekhar, J S Yadav, and R Grée Synthesis of new 4-methyl-3-piperidones via an iron-catalyzed intramolecular tandem isomerization–aldolisation process Tetrahedron 2012, 68, 8863-8868
222 Naresh T, M Jacolot, M  Jean, S Chandrasekhar and P van de Weghe Synthetic studies towards Stachybotrin C Synlett 2012, 23, 2919-2922
221 A. Srirama Murthy,B Mahipal and S Chandrasekhar* Asymmetric synthesis of C14 - C26 building block of eribulin mesylate Eur. J. Org. Chem. 2012, 6959-6966
220 T. Pavan Kumar and S. Chandrasekhar* Asymmetric syntheses of all stereoisomers of 3-hydroxyproline, a constituent of several bioactive compounds Synthesis 2012, 2889-2894
219 M. Seenaiah and  S. Chandrasekhar* Stereoselective synthesis of the common polyketide fragment of Hoiamides Tetrahedron Letters 2012, 53, 4087-4089
218 P. S. Mainkar*, K. Johny, T. Prabhakar Rao and  S. Chandrasekhar* Synthesis of O-Spiro-C-Aryl Glycosides using Organocatalysis J. Org. Chem. 2012, 77, 2519-2525
217 S. Chandrasekhar* C. Sridhar and P. Srihari A carbohydrate approach for the formal total synthesis of the prostacyclin analogue (16S)-iloprost Tetrahedron: Asymmetry 2012, 23, 388-394
216 R. V. N. S. Murali and  S. Chandrasekhar* Stereocontrolled syntheses of piperidine alkaloids, (–)-241D and (–)-isosolenopsin Tetrahedron Letters 2012, 53, 3467-3470
215 S. Chandrasekhar* and L Sreelakshmi Formal synthesis of fumonisin B1, a potent sphingolipid biosynthesis inhibitor Tetrahedron Letters 2012, 53, 3233-3236
214 N Kesava Reddy, B V. D. Vijaykumar and S. Chandrasekhar* Formal Synthesis of Anti-Platelet Drug, Beraprost Organic Letters 2012, 14, 299-301
213 S. Chandrasekhar,* Ml Pendke, Chandrasekhar V and P S. Mainkar Synthesis of a, a-dideutero-ß-amino acids Tetrahedron Letters 2012, 53, 1292-1295
212 V Praveen Kumar, R. Gajendra Reddy, D D Vo,  S Chakravarty, S Chandrasekhar* and R Grée* Synthesis and neurite growth evaluation of new analogues of honokiol, a neolignan with potent neurotropic activity Bioorg. Med. Chem. Lett. 2012, 22, 1439-1444
211 B. V. D. Vijaykumar, P. Mallesham and S Chandrasekhar* Towards Allopumiliotoxins: A Concise Synthesis of the Indolizidine Core Eur. J. Org. Chem. 2012, 988-994
210 S. Chandrasekhar* SNCVL Puspavalli,Srinivas C, D Mukhopahyay,  B Ganganna,  K Vijeender, P Srihari, Ch Raji Reddy, M. Janaki Ramaiah and Utpal Bhadra,* Aza-flavanones as potent cross-species microRNA inhibitors that arrest cell cycle   Bioorg. Med. Chem. Lett. 2012, 22, 645-648
209 B. Mahipal, K. Mallikarjun and S. Chandrasekhar* Formal synthesis of (+)-Didemniserinolipid B Tetrahedron Letters 2012, 53, 45-47
208 A. Raghuramreddy, D. Harikrishna, S. Chandrasekhar, D. R. Krishna, and A. Raghuram Rao An improved synthesis of lysosomal activated mustard prodrug for tumor-specific activation and its cytotoxic evaluation Drug Development and Industrial Pharmacy 2012, 38, 1047-1053
207 D H Mac, Ramesh S, A Sattar, S Chandrasekhar, J S Yadav* and R Gree* Total synthesis of gabosines via an  iron-catalyzed intramolecular tandem aldol process Tetrahedron 2011, 67, 9305-9310
206 P. Mallesham, B. V. D. Vijaykumar, D-S Shin* and S. Chandrasekhar* Total synthesis of pyrrolidine alkaloid, Radicamine-B via Stille coupling Tetrahedron Letters 2011, 52, 6145-6147
205 K. Satish, G. Pavan Kumar Reddy, P. S. Mainkar and S. Chandrasekhar* Synthesis of 'southern' tripeptide of Cyclomarins A and C having novel anti-tuberculocidal mode of action Tetrahedron: Asymmetry 2011, 22, 1568-1573
204 Ch. Raji Reddy,* L. Radhika, T. Pavan Kumar and S. Chandrasekhar First acid-catalyzed entry to O-alkylated hydroxamides from benzylic alcohols Eur. J. Org. Chem. 2011, 5967-5970
203 S. Chandrasekhar,* B. V. D. Vijaykumar, B. Mahesh Chandra, Ch. Raji Reddy and P. Naresh Flow chemistry approach for partial deuteration of alkynes: Synthesis of deuterated taxol side chain Tetrahedron Letters 2011, 52, 3865-3867
202 S. Chandrasekhar* T. Pavan Kumar, K Haribabu,  Ch. Raji Reddy and Ch. Ramesh Kumar A chiral pyrrolidine-pyrazole catalyst for enantioselective Michael addition of carbonyls to nitroolefins and Mechanistic insight   Tetrahedron: Asymmetry 2011, 22, 697-702
201 D. Basu, M.  Chandrasekharam, P. S. Mainkar and S. Chandrasekhar* A synthetic approach to terpendoles: decahydrobenzo[f]chromenes  by an intermolecular Diels-Alder route Arkivoc 2011, 355-362
200 M. Kavitha, B. Mahipal, P. S. Mainkar and S. Chandrasekhar* Click reaction on in situ generated ß-azidostyrenes from cinnamic acid using CAN-NaN3: Synthesis of N-styryl triazoles Tetrahedron Letters 2011, 52, 1658-1662
199 Shyam Kiran, D. K. Mohapatra, and S. Chandrasekhar* A Practical Synthesis of (2S)-R207910 and (2R)-R207910 Eur. J. Org. Chem. 2011, 2057-2061
198 B. Raju, M. Ramesh, R. Srinivas,* S. Chandrasekhar,* N. Kiranmai and V. U. M. Sarma Differentiation of positional isomers of hybrid peptides containing repeats of ß-Nucleoside derived amino acid (ß-Nda-) and L-Amino acids by positive and negative ion electrospray ionization tandem mass spectrometry(ESI-MS/MS) J. Am. Soc. For Mass Spectrometry 2011, 22, 703-717
197 Ch Raji Reddy, P. Phani Madhavi and S. Chandrasekhar* Stereoselective synthesis of tetrahydropyranyl diarylheptanoids (_)-centrolobine and (+)-centrolobine Synthesis 2011, 123-126
196 S. Chandrasekhar,* M. Seenaiah, A. Kumar, Ch. Raji Reddy, Suman Kumar,  M., C. Ganesh Kumar and Sridhar. B. Intramolecular copper(I)-catalyzed 1, 3-dipolar cycloaddition of azido-alkynes: Synthesis of triazolo-benzoxazepine derivatives as anti-microbial agents Tetrahedron Letters 2011, 52, 806-808
195 S. Chandrasekhar,*T. Pavankumar, K. Haribabu and Ch. Raji Reddy Hydroxyphthalimide allied triazole-pyrrolidine catalyst for asymmetric Michael addition in water Tetrahedron: Asymmetry 2010, 21, 2372-2375
194 S. Chandrasekhar,* N. Kiranmai, M. Udaya Kiran, A. Sharada Devi, G. Pavan Kumar Reddy, Md. Idris and B. Jagadeesh Novel Helical Foldamers: Organized heterogeneous backbone folding in 1:1 a/Nucleoside derived–ß-amino acid sequences Chemical Communications 2010, 46, 6962-6964
193 S. Chandrasekhar,* P. Srihari, Ch. Nagesh, N. Kiranmai, N. Nagesh and M. M. Idris Synthesis of readily accessible triazole linked dimer deoxynucleoside phosphoramidite for solid phase oligonucleotide synthesis Synthesis 2010, 3710-3714
192 S. Chandrasekhar,* S.V. Balaji and G. Rajesh First total synthesis of achaetolide Tetrahedron Letters 2010, 51, 5164-5166
191 S. Chandrasekhar,* and  N. Kiranmai Asymmetric total synthesis of (+)-cardiobutanolide via an iterative asymmetric dihydroxylation in PEG Tetrahedron Letters 2010, 51, 4058-4060
190 S. Chandrasekhar,* N. Kesava Reddy and V. Praveen Kumar Oxidation of alkynes using PdCl2/CuCl2 in PEG as a recyclable catalytic system: one-pot synthesis of quinoxalines Tetrahedron Letters 2010, 51, 3623-3625
189 Ch. Raji Reddy,* P. Phani Madhavi and S. Chandrasekhar Synthesis of a diarylheptanoid, (+)-Centrolobine Tetrahedron: Asymmetry 2010, 21, 103-105
188 S. Chandrasekhar,* A. Sudhakar Total Synthesis of Bengazole A Organic Letters 2010, 12, 236-238
187 S. Chandrasekhar* B Mahipal and M Kavitha Towards Tubulysin: Gram scale synthesis of Tubuvaline-Tubuphenylalanine (Tuv-Tup) fragment J. Org. Chem. 2009, 74, 9531-9534
186 G Viault,  D Gree, T Roisnel, S Chandrasekhar and R Gree* The first synthesis of 2-amino-1,4-dihydroquinolines Tetrahedron 2009, 65, 10149-10154
185 S. Chandrasekhar,* G. Pavankumarreddy and K. Sathish Total synthesis of arenamide A and its diastereomer Tetrahedron Letters 2009, 50, 6851-6854
184 S. Chandrasekhar,* G. S. Kiran Babu and  Ch. Raji Reddy Asymmetric synthesis of aza-diospongin A as a iNOS inducer Tetrahedron: Asymmetry 2009, 20, 2216-2219
183 B. Raju, V. Ramesh, A. Sudhakar, M. Ramesh, V. U. M. Sharma, S. Chandrasekhar and  R. Srinivas Diastereomeric differentiation of norbornene amino acid peptides by electrospray ionization tandem mass spectrometry Rapid Commun. Mass Spectrom. 2009, 2965-2974  
182 B.  Jagadeesh,*  M Uday, A Sudhakar and S Chandrasekhar* Backbone regulation mimicry by beta-peptidic foldamers:   Formation of 10-helix in a mixed conformational pool of 6-strand and 14-helix   Chem. Eur. J. 2009, 15, 12592-12595
181 S. Chandrasekhar,* and B Tiwari Synthesis of C10-C24 fragment of (+)-cannabisativine Tetrahedron: Asymmetry 2009, 20, 1924-1929
180 S. Chandrasekhar,* K. Johny and Ch. Raji Reddy Proline-threonine dipeptide as an organo-catalyst for direct asymmetric Aldol reaction Tetrahedron: Asymmetry 2009, 20, 1742-1745  
179 S. Chandrasekhar,* R. V. N. S. Murali and Ch. Raji Reddy Enantioselective synthesis of (-)-lasubine II Tetrahedron Letters 2009, 50, 5686-5688
178 P. Srihari,* P Dutta, R. S Rao, J. S. Yadav, S. Chandrasekhar, P. Thombare, J. Mohapatra, A. Chatterjee and  M R. Jain Solvent free synthesis of 1,5-disubstituted tetrazoles derived from Baylis-Hillman acetates as potential TNF-a inhibitors Bioorg. Med. Chem. Lett. 2009, 19, 5569-5572
177 S. Chandrasekhar,* S Khatun, G. Rajesh and Ch. Raji Reddy B(C6F5)3: An efficient catalyst for reductive alkylation of alkoxy benzenes and for synthesis of triarylmethanes using aldehydes Tetrahedron Letters 2009, 50, 6693-6697
176 S. Chandrasekhar,* K. Mallikarjun, G. P. K Reddy, B. Jagadeesh and V. Mohan Enantiopure cycloalkane fused tetrahydropyrans through domino Michael–Ketalizations with organocatalysis Chemical Communications 2009, 4985-4987
175 S. Chandrasekhar,* D Basu, M. Sailu and S. Kotamraju Novel synthetic route to the tricyclic core of (±)-galanthamine Tetrahedron Letters 2009, 50, 4882-4884
174 D H Mac, Ramesh S, J Petrignet, P Srihari, S Chandrasekhar, J S Yadav,* and R Grée* From vinyl pyranoses to carbasugars by an iron-catalyzed reaction complementary to classical Ferrier carbocyclisation Chemical Communications 2009, 4717-4719
173 S. Chandrasekhar,* B B. Parida and Ch. Rambabu Stereoflexible total Synthesis of (-)- Epiquinamide  Tetrahedron Letters 2009, 50, 3294-3295
172 S. Chandrasekhar,* Ch. Lohitha Rao, M. Seenaiah, P. Naresh, B. Jagadesh, D. Manjeera, A. Sarkar and M Pal Bhadra Total synthesis of azumamide E and sugar amino acid containing analogue   J. Org. Chem. 2009, 74, 401-404
171 S. Das, S. Chandrasekhar, J. S. Yadav, A. V. R. Rao and R. Gree* An efficient process for the resolution of cis-4-O-protected-2-cyclopenten-1,4-diol using pancreatin lipase in [C(8)mim][PF6] as a reusable system Tetrahedron Asymmetry 2008, 19, 2543-2545
170 S. Chandrasekhar,* Ch. Lohitha Rao, M. S. Reddy, G. D. Sharma, M. U. Kiran, P. Naresh, G. K. Chaitanya, K. B. Prakash and  B. Jagadesh b-Sugar aminoxy peptides as rigid secondary structural scaffolds   J. Org. Chem. 2008, 73, 9443-9446
169 S. Chandrasekhar,*A. Sudhakar, M. Udaya Kiran, B. Nagendra Babu and B. Jagadeesh b-Strand mimetics: Formation of bend strands in oligomers of enantiomeric b- aminoacids Tetrahedron Letters 2008, 49, 7368-7371
168 S. Chandrasekhar,* M. Seenaiah, Ch. Lohitha Rao and Ch. Raji Reddy A smooth access to benzotriazoles via azide-alkyne cycloaddition Tetrahedron 2008, 64, 11325-11327
167 S. Chandrasekhar,*  Ch. Rambabu,  and A. Syamprasad Reddy Spirastrellolide B: The synthesis of southern (C9-C25) region Organic Letters 2008, 10, 4355-4357
166 S. Chandrasekhar,*  B B. Parida  and Ch. Rambabu Total synthesis of hyacinthacene A1, a glycosidase inhibitor J. Org. Chem. 2008, 73, 7826-7828
165 Ch. Raji Reddy,*P. Phani Madhavi and S. Chandrasekhar Asymmetric synthesis of 6-epi- (-)-centrolobine Synthesis 2008, 2939-2942
164 Z Hua, K-H. Kam, H-J. Kwon, L. Meng, Ch. Ahn, T-J. Won, T-H. Kim, Ch. Raji Reddy, S. Chandrasekhar and D-S Shin* Microwave-assisted synthesis of 2H-benzo[b][1,4]oxazin-3(4H)-ones and 1H-Pyrido[2,3-b] [1,4]oxazin-2(3H)-ones via Smiles rearrangement Bull. Korean Chem. Society 2008, 29, 1379-1385
163 S. Chandrasekhar,*  Ch. Rambabu,  and A. Syamprasad Reddy Asymmetric synthesis of (+)-passifloricin A and its 6-epimer Tetrahedron Letters 2008, 49, 4476-4478
162 Z Hua, M Lijuan, M Ghate, K-H Hwang, Y K Cho, S. Chandrasekhar Ch. Raji Reddy, and D-S Shin* Microwave-assisted one-pot synthesis of benzo[b][1,4]oxazin -3(4H)-ones via Smiles rearrangement Tetrahedron Letters 2008, 49, 3827-3830
161 S. Chandrasekhar,* B. Vijay Kumar  and T. V. Pratap Total synthesis of (-)-lentiginosine Tetrahedron: Asymmetry 2008, 19, 746-750
160 S. Chandrasekhar,*G. Pavankumar Reddy, M. Udaya Kiran, Ch. Nagesh and B. Jagadeesh Nucleoside derived amino acids (NDA) in foldamer chemistry: Synthesis and conformational studies of homooligomers of modified AZT Tetrahedron Letters 2008, 49, 2969-2973
159 S. Chandrasekhar,* Y. Srinivasa Rao L. Sreelakshimi, B. Mahipal and Ch. Raji Reddy B(C6F5)3-Catalyzed three-component reaction for the synthesis of 1,8-dioxo decahydroacridines under solvent-free conditions Synthesis 2008, 1737-1740
158 S. Chandrasekhar,*Y. Srinivasa Rao A. Sreelakshimi and Ch. Raji Reddy Formal total synthesis of (-)-spongidepsin Tetrahedron 2008, 64, 5174-5183
157 S. Chandrasekhar,* B. Saritha, P. Naresh, B. Jagadeesh and Ch. Raji Reddy Synthesis and characterization of C2-symmetric cyclic peptide with alternating cis-ß-sugar amino acid and ornithine subunits Helv. Chim. Acta. 2008, 91, 1267-1276
156 S. Chandrasekhar,* B Tiwari, Bn B. Parida and Ch. Raji Reddy Chiral pyrrolidine-triazole conjugate catalyst for asymmetric Michael and Aldol reactions Tetrahedron Asymmetry 2008, 19, 495-499
155 J. Kang, K. H. Kam,   M Ghate, Z Hua, T-H Kim, Ch. Raji Reddy, S. Chandrasekhar, and D-S Shin An Efficient Synthesis of 2H-1,4-benzoxazine 3-(4H)-ones via Smiles Rearrangement Arkivoc 2008, 67-76
154 G. Smitha,  S. Chandrasekhar and Ch. Sanjeeva Reddy,* Applications of Zirconium(IV) chloride in organic synthesis – A review Synthesis 2008, 829-855
153 Ch. Raji Reddy,* Y. Srinivasa Rao, T. Pavan Kumar K. Vankatram Reddy and S. Chandrasekhar Hydroxylamine derivatives as nucleophiles in Ferrier glycosylation: Synthesis of aminoxy pseudoglycals   Synthesis 2008, 122-126
152 G Gim, M Lijuan, Z Hua, M Ghate, C Ahn, T-J Won, T-H Kim, Ch. Raji Reddy, S. Chandrasekhar, and D-S Shin* Practicable Synthesis of 1-(1-Phenylethyl)-1H-pyrido[2,3-b] [1,4]oxazine Bull. Korean Chem. Society 2007, 28, 2486-2488
151 S. Chandrasekhar,* K. Vijeender, G. Chandrashekar and Ch. Raji Reddy Towards synthesis of Palmerolide A: asymmetric synthesis of C1-C14 fragment Tetrahedron: Asymmetry 2007, 18, 2473-2478
150 S. Chandrasekhar, * Y. Srinivasa Rao and Sreelakshmi Stereoselective formal total synthesis of the cyclodepsipeptide (-)-spongidepsin Tetrahedron Letters 2007, 48, 7339-7342
149 I. Pratap, S.  Chandrasekhar, J. S. Yadav, Rene Gree* A catalytic method for converting vinylic furanoses into cyclopentenones Angewandte Chemie 2007,  46, 6297-6300
148 S Das, S.  Chandrasekhar, J. S. Yadav and Rene Gree* Recent developments in the synthesis of Prostaglandins and analogues Chemical Reviews 2007, 107, 3286-3337
147 S. Chandrasekhar,* Ch. Lohitha Rao, Ch. Nagesh and Ch. Raji Reddy Caveat in inter and intramolecular ‘click’ reaction: Synthesis of furanotriazole macrocycles Tetrahedron Letters  2007, 48, 5869-5872
146 S Das, S. Chandrasekhar, J. S. Yadav and R Gree* Ionic liquids as recyclable solvent for diethyl amino sulphur trifluoride (DAST) mediated fluorination of alcohols and carbonyl compounds Tetrahedron Letters 2007, 48, 5305-5307
145 S. Chandrasekhar,*     K. Vijeender and Sreedhar L-Proline catalyzed one pot synthesis of 2-aryl-2,3 dihydro 1H-quinolin-4-ones Tetrahedron Letters 2007, 48, 4935-4937
144 S. Chandrasekhar,* Ch. Rambabu and T. Shyamsundar Total synthesis of Aculeatins A and B via a tethered oxa-Michael approach Tetrahedron Letters 2007, 48, 4683-4685
143 S. Chandrasekhar,* Debjit Basu and Ch. Raji Reddy Palladium catalyzed reduction of N-Boc-indoles using polymethylhydrosiloxane Synthesis 2007, 1509-1512
142 Ch. Raji Reddy,* K. Vijeender, P. B Bhusan, P. Phani Madhavi and S. Chandrasekhar Reductive N-alkylation of aromatic amines and nitro compounds with nitriles using polymethylhydroxiloxane Tetrahedron Letters 2007, 48, 2765-2768
141 S. Chandrasekhar,* S. Shameem sultana, N. Kiranmai and Ch. Narsihmulu Asymmetric synthesis of (+)-tetrahydropseudodistomin Tetrahedron Letters 2007, 48, 2373-2375
140 S. Chandrasekhar,* G. Pavankumar Reddy, Ch. Nagesh and Ch. Raji Reddy A Novel One-Pot conversion of amines to homologated esters in poly(ethylene glycol) Tetrahedron  Letters 2007, 48, 1269-1271
139 Ch. Raji Reddy,* N. Kiranmai, G. S. Kiran Babu, G. Dattatreya Sarma, B. Jagadeesh and S. Chandrasekhar Palladium catalyzed addition of hydroxylamine derivatives to Baylis Hillman acetate adducts Tetrahedron Letters 2007, 48, 215-218
138 A. S. K. Murthy,* Ch. Rambabu, K.Vijeender, P. B. Bhushan and S. Chandrasekhar A Pd(OAc)2 mediated one pot synthesis of trisubstituted alkens by Michaeladdition of stable ylide to Baylis-Hillman adducts Synlett 2007, 494-496
137 S. Chandrasekhar,* G. Parimala, B. Tiwari and  Ch. Narsimhulu Highly stereoselective synthesis of a novel antifungal piperazic acid derivative Synthesis 2007, 1677-1682  
136 B. Jagadeesh,* A. Prabhakar, D. Sharma S. Chandrasekhar,* G. Chandrasekhar, M. Srinivasa Reddy and B. Jagannadh* Formation of left handed helices in hybrid peptide oligomers with cis b-sugar amino acid and L-Ala as building blocks Chemical Communications 2007, 371-373
135 S. Chandrasekhar,* B. Nagendra Babu and G. Chandrashekar Tris(pentafluorophenyl)borane eEROS, 2006 DOI: 10.1002/047084289X.rn00620
134 B. Jagannadh,*. B. Jagadeesh,* A. Prabhakar, S. Chandrasekhar,* M. Srinivasa Reddy and Ch. Lohitha Rao Self-assembly of cyclic homo- and hetero-b-peptides with cis- furanoid sugar amino acid and ß-hGly as building blocks Chemical Communications 2006, 4847-4849
133 S. Chandrasekhar,* G. Chandrasekhar and K. Vijeender Stereoselective Synthesis of (-)-Bulgecinine Hydrochloride and its C-2 Epimer from L-Ascorbic Acid Tetrahedron asymmetry 2006, 17, 2864-2869
132 S. Chandrasekhar,* N. Ramakrishna Reddy and Y. Srinivasa Rao Synthetic studies on Ecteinascidin-743: Synthesis of building blocks through Sharpless Asymmetric Dihydroxyltion and Aza-Michael reactions Tetrahedron 2006, 62, 12098-12107
131 S. Chandrasekhar,* M. Srinivasa Reddy, G.S. Kiran Babu and A. Sai Krishna Murthy Stereoselective synthesis of protected (2R, 3R, 4S) 4,7-diamino-2,3-dihydroxyheptanoic acid, a constituent of Callipeltins A and D Tetrahedron Letters 2006, 47, 7307-7309
130 S.Chandrasekhar,* and S. Shameem Sultana Stereoselective synthesis of the C1-C20 segment of Microsclerodermin A and B Tetrahedron Letters 2006, 47, 7225-7228
129 B. S. Sastry, K. S. Babu, T. H Babu, S. Chandrasekhar, P. V. Srinivas, A. K. Saxena and J. M. Rao* Synthesis and biological studies of amide derivatives of Nimbolide Bio. Med.Chem.Lett 2006, 4391-4394
128 S. Chandrasekhar, Y. Srinivasa Rao, D Basu and P. Srihari * Tris(pentafluorophenyl)borane catalyzed synthesis of N-benzyl pyrrolidines Synthesis 2006, 2646-2647
127 S. Chandrasekhar,* S. Jaya Prakash and B. Tiwari Concise synthesis of truncated pachastrissamine (jaspine B) and its enantiomer Arkivoc 2006, 155-161
126 S. Chandrasekhar,* B. Nagendra Babu, A. Prabhakar, A. Sudhakar, M. Srinivasa Reddy, M. Uday Kiran and B. Jagadeesh Oligomers of cis-ß-norbornene amino acid: Formation of ß-strand mimetics Chemical Communications 2006, 1548-1550
125 S. Chandrasekhar,* B. Saritha, V. Jagadeshwar and S. Jayaprakash Practical and highly stereoselective approaches to the total synthesis of (-)-codonopsinine Tetrahedron Asymmetry 2006, 17, 1380-1386
124 S. Chandrasekhar,* Ch. Rambabu and D. Basu ‘Three component coupling of alkynes, Baylis-Hillman adducts and sodium azide : New Synthesis of substituted triazoles" Tetrahedron Letters 2006, 47, 3059-3063
123 S. Chandrasekhar,* G. Chandrashekar, M. Srinivasa Reddy and P. Srihari A facile chemoselective conjugate reduction using polymethylhydrosiloxane (PMHS) and catalytic B(C6F5)3 Org. Biomol. Chem. 2006, 4, 1650-1652
122 S. Chandrasekhar,* S. Jaya Prakash and Ch. Lohitha Rao Polyethylene glycol (400) as superior solvent medium against ionic liquids for catalytic hydrogenations with PtO2 J. Org. Chem 2006, 71, 2196-2199
121 S. Chandrasekhar,* B. Saritha, V. Jagadeshwar, Ch. Narsihmulu, D Vijay, G. D Sarma and B. Jagadeesh Hydroxy assisted catalyst free Michael addition-dehydroxylation of Baylis-Hillman adducts in poly (ethylene glycol) Tetrahedron Letters 2006, 47, 2981-2984
120 S. Chandrasekhar,* G. Chandrasekhar, K. Vijeender and M. Srinivasa Reddy Synthesis of trisubstituted alkenes by reductive dehydoxylation of Baylis Hillman adducts using PMHS and catalytic B(C6F5)3 Tetrahedron Letters 2006, 47, 3475-3478
119 S. Chandrasekhar,* Ch. Rambabu and S. Jaya Prakash Total synthesis of 6-epiprelactone-V via syn selective oxygen tethered intra-molecular Michael reaction Tetrahedron Letters 2006, 47, 1213-1215
118 S. Chandrasekhar,*  S. Shameem sultana, Y. Srinivasa Rao and N. Ramakrishna Reddy. Copper-catalyzed N-arylation of amines/amides in poly ethylene glycol (400 Daltons) as recyclable solvent medium. Synthesis 2006, 839-842
117 S. Chandrasekhar,* N. Ramakrishna Reddy, S. Shameem sultana, Ch. Narsimhulu and K. V. Reddy L-Proline catalyzed asymmetric aldol reaction in PEG and transfer aldol reactions   Tetrahedron 2006, 62, 338-345
116 S. Chandrasekhar,* T. Shyamsunder, S. Jaya Prakash, A. Prabhakar and B. Jagadeesh First total synthesis of (-)-diospongin B. Tetrahedron letters 2006, 47, 47-49  
115 S. Chandrasekhar,*  K. Vijeender and K. V. Reddy New Synthesis of  Flavanones Catalyzed by L-Proline Tetrahedron Letters 2005, 46, 6991-6993
114 S. Chandrasekhar,* S. Jaya Prakash, T. Shyamsunder  and T. Ramachander Tantalum (V) Chloride-Silicagel:  An Efficient Catalyst fro Conversion of Carbonyl Compunds to 1,3-Oxathiolanes Synthetic Communications 2005, 35, 3127-3131
113 S. Chandrasekhar,* S. Jaya Prakash and T. Shyamsunder Asymmetric synthesis of pyran antibiotic (-)-centrolobine Tetrahedron Letters 2005, 46, 6651-6653
112 S. Chandrasekhar* and G. Chandrashekar First simple and efficient synthesis of unnatural dipeptide part of Phomopsin A Tetrahedron Asymmetry 2005, 16, 2209-2216
111 S. Chandrasekhar,* M. Srinivasa Reddy, B. Nagendra Babu, B. Jagadeesh, A. Prabhakar and B. Jagannadh. Expanding the Conformational Pool of cis-ß-Sugar Amino Acid: Accommodation of ß-hGly Motif in Robust 14-Helix J. Am. Chem. Soc. 2005, 127, 9664-9665
110 S. Chandrasekhar,* Ch. Narsimhulu, B. Saritha and V. Jagadeshwar  Palladium-triethylborane triggered direct and regioselective conversion of allylic alcohols to allyl phenyl sulfones   J. Org. Chem., 2005, 70, 6506-6507
109 S. Chandrasekhar,*  Y. Srinivasa Rao and N. Ramakrishna Reddy. B(C6F5)3-Catalyzed synthesis of ß-keto enol ethers from ß-diketones Synlett 2005, 1472-1473
108 S. Chandrasekhar,* V. Jagadeshwar and S. Jaya Prakash Total Synthesis of the Alkaloid (-) Codonopsinine from L-Xylose Tetrahedron Letters 2005, 46, 3127-3129
107 M.Prakesch, D. Grée,  S. Chandrasekhar ,* and R.Grée* Synthesis of fluoro analogues of unsaturaed fatty acids and corresponding acylic metabolites Eur. J. Org. Chem. 2005, 1221-1232
106 S. Chandrasekhar,* Ch. Narsimhulu, V. Jagadeshwar and S. Shameem sultana Synthesis of 'C'   ring of Eleutherobin ARKIVOC Part (iii), 2005, 92-98
105 S. Chandrasekhar,* B. Nagendra Babu, N. Ramakrishna Reddy and L. Chandraiah. Towords total synthesis of pyrolicidins ARKIVOC Part(xi), 2005, 40-47
104 S. Chandrasekhar,* S. Jaya Prakash, T. Shyamsunder and T. Ramachander TaCl5-SiO2 catalyzed ring opening of aziridines with aromatic amines Synthetic Communications 2004, 34, 3865-3873
103 S. Chandrasekhar,* Ch. Narsimhulu, S. Shameem sultana and M. Srinivasa Reddy The first stereo selective total synthesis of (6S)-5,6-dihydro-6-[-(2R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one Tetrahedron Letters 2004, 45, 9299-9301  
102 S. Chandrasekhar,* Ch. Narsimhulu, N. Ramakrishna Reddy and  S. Shameem sultana L- Proline catalyzed asymmetric transfer aldol reaction between diacetone alcohol and aldehydes Chemical Communications 2004, 2450-2451  
101 S Chandrasekhar,* G  Chandrashekar and Ch Raji Reddy First Ferrier reaction of Glucals  with sulphonamides catalysed by B(C6F5)3   Tetrahedron Letters 2004, 45, 6481-6484  
100 S. Anjaiah, S. Chandrasekhar and R. Gree* Stetter Reaction in Room Temperature Ionic Liquids and Application to the synthesis of Haloperiodol Advanced Synthesis and Catalysis 2004, 346, 1329-1334
99 S. Chandrasekhar,* M. Srinivas Reddy, B. Jagadeesh, A. Prabhakar, M. H. V.Ramana Rao and B. Jagannadh Formation of a Stable 14-Helix in Short Oligomers of Furanoid cis-b-Sugar Amino Acid J. Am. Chem. Soc. 2004, 126, 13586- 13587
98 S. Chandrasekhar,* Ch. Narsihmulu, B. Saritha and S. Shameem sulthana Poly ethylene glycol (PEG): A recyclable reaction medium reaction medium for the DABCO catalyzed Baylis-Hillman reaction Tetrahedron Letters 2004, 45, 5865-5867
97 S. Chandrasekhar,* B. Nagendra Babu, G. Chandrashekar, K. Vijeender and K. V. Reddy Reductive etherification of carbonyl compounds with alkoxy trimethyl silylethers using polymethylhydrosiloxane (PMHS) and catalytic B(C6F5)3 Tetrahedron Letters 2004, 45, 5497-5499
96 S. Chandrasekhar,*a V. Jagadeshwar, Ch. Narsihmulu, M. Sarangapani, D. R. Krishna, J. Vidyasagar, D Vijay and G. Narahari Sastry Design, synthesis and cytotoxic studies of simplied oxy-analogue of eleutherobin Bio-org. Med. Chem. Lett 2004, 143, 3687-3689
95 S. Chandrasekhar,* T. Ramachandar and T. Shyam Sunder Applications of Trivalent and Pentavalent Tantalum in Organic Synthesis I. J. C. B (Review) 2004, 43B, 813-838
94 S. Chandrasekhar,* B. Nagendra Babu, M Ahmed, M. Venkat Reddy, P. Srihari, B. Jagadeesh and A. Prabhakar Safe and convenient reduction of ¿2isoxazolines with PMHS/Pd(OH)2/C Synlett 2004, 1303-1305
93 S. Chandrasekhar,*   Ch. Narsimhulu,              N. Ramakrishna Reddy   and S. Shameem Sultana  Asymmetric aldol reaction in poly (ethylene glycol) catalyzed by L-proline Tetrahedron Letters 2004, 45, 4581-4582
92 S. Chandrasekhar,* T. Shyamsunder, G. Chandrasekhar and Ch. Narsihmulu Hydrogenation and Hydrogenolysis with Pd-C in Poly(ethylene glycol) (PEG): A Practical and Recyclable Medium Synlett 2004, 522-524
91 S. Chandrasekhar,*  Ch. Narsihmulu, G. Chandrasekhar, and T. Shyamsunder Pd/CaCO3 in liquid poly (ethylene glycol) (PEG): Easy and efficient recycle system for partial reduction of alkynes to cis-olefins under hydrogen atmosphere Tetrahedron Letters 2004, 45, 2421-2423
90 S. Anjaiah, S. Chandrasekhar and R. Gree* Carbon-Ferrier rearrangements in ionic liquids using Yb(OTf)3 as catalyst Journal of Molecular Catalysis A: Chemical, 2004, 214, 133-136
89 S. Anjaiah, S. Chandrasekhar and R. Gree* Synthesis and preliminary use of novel acrylic ester derivative-task-specific ionic liquids Tetrahedron letters 2004, 45, 569-571
88 L. F.Tietze,* H Bell and S.Chandrasekhar Hybrid natural products as ‘Leads’ in pharmaceuticals Angewandte Chemie 2003, 42, 3996-4028
87 S. Chandrasekhar,* Ch. Narsimhulu, S. Shameem sultana and N. Ramakrishna Reddy Osmium tetroxide in poly (ethylene glycol) (PEG): A recyclable reaction medium for rapid asymmetric dihydroxylation under Sharpless conditions: J. C. S. Chem. Commun. 2003, 1716-1717
86 Ch.Sanjeeva Reddy,* G. Smitha and S. Chandrasekhar. ZrCl4 as a mild and efficient catalyst for one-pot conversion of TBS and THP ethers to acetates. Tetrahedron letters, 2003, 44, 4693-4695
85 S.Chandrasekhar,* Ch. Narsihmulu, V. Jagadeshwar and K.Venkatramreddy The first Corey-Chaykovsky epoxidation and Cyclopropanation in ionic liquids Tetrahedron letters 2003, 44, 3629-3630
84 J. S. Yadav,* V. Geetha, A. Krishnamraju, D. Gnaneshwar and S. Chandrasekhar The first total synthesis of the 6-hydroxy-4E-sphingenines Tetrahedron letters 2003, 44, 2983-2985
83 S. Chandrasekhar,* Ch. Narsimhulu, N. Ramakrishna Reddy and M. Srinivas Reddy Triethylborane triggered intermolecular domino Michael-aldol three component coupling reaction Tetrahedron Letters 2003, 44, 2583-2585
82 S. Chandrasekhar,* Ch. Srinivas and P. Srihari Phenyl sulfonyl acetaldehyde diethyl acetal: A new robust 1, 2 – diol protective group Synthetic Communications 2003, 895-902
81 S. Chandrasekhar,* Ch. Raji Reddy and B. Nagendra Babu Single step conversion of N-Benzyl, N-trityl, N-Diphenyl methyl amines to tert.Butyl carbamates using PMHS Tetrahedron Letters 2003, 44, 2057-2059  
80 S. Chandrasekhar,* Ch. Narsimhulu, S. Shameem sultana, B. Saritha  and S. Jayaprakash Solvent and Catalyst Free Three Component Coupling of Carbonyl Compounds, Amines and Triethylphosphite; A New Synthesis of a- Aminophosphonates. Synlett 2003, 505-506
79 S. Chandrasekhar,* J. S. Yadav, J. C. Guillemin, S. Shameem sultana, Ch. Narsimhulu and R. Gree Direct condensation of carboxylic acids with polyethylene glycol catalyzed by Sc(OTf)3 Tetrahedron Letters 2002, 43, 8335-8337
78 S. Chandrasekhar,* Ch. Narsimhulu, S. Shameem sultana and N. Ramakrishna Reddy Poly (ethylene glycol) (PEG) as Reusable Solvent Medium for Organic Synthesis; Application in Heck reaction Organic Letters 2002, 4, 4399-4401
77 S. Chandrasekhar,* Ch. Narsimhulu and S. Shameem sultana Ceric ammonium nitrate (CAN) catalyzed ring cleavage of N-tosyl aziridines: a potential tool for solution phase library generation Tetrahedron Letters 2002, 43, 7361-7363
76 S. Chandrasekhar,* Abbas Raza, M. Venkat Reddy and J. S. Yadav Solid Phase Synthesis of Isoxazolines Journal of Combinatorial Chemistry 2002, 4, 652-655
75 S. Chandrasekhar, Ch. Raji Reddy and B. Nagendra Babu Rapid defunctionalization of carbonyl functionality to methylene using polymethyl-hydrosiloxane-B(C6F5)3 J. Org. Chem. 2002, 67, 9080-9082  
74 S. Chandrasekhar,* T. Ramachandar and M. Venkat Reddy An Efficient Synthesis of (-)Deacetyl Anisomycin Starting from D- Tyrosin Synthesis 2002, 1867-1870
73 S. Chandrasekhar,* Ch. Narsimhulu and V. Jagadeeshwar Ultrasound promoted onepot conversion of nitro compounds to carbamates Synlett 2002, 771-772
72 S. Chandrasekhar, J. S. Yadav, J. C. Guillemin, P. L. Pathi and R. Gree* Soluble polymer supported asymmetric synthesis (SPSAS) Ind. J. Chem. 2002, 41B, 2116-2128  
71 S. Chandrasekhar,* Ch. Raji Reddy, B. Nagendra Babu and G. Chandrashekar Highly efficient cleavage of epoxides catalyzed by B (C6F5)3 Tetrahedron Letters 2002, 43, 3801-3803
70 S. Chandrasekhar,* Abbas Raza and M. Takhi Synthesis of unusual amino acids: N- (tert-butoxycarbonyl)-L-vinyl glycine and N- (tert-butoxycarbonyl)-L-homophenylalanine Tetrahedron: Asymmetry 2002, 13, 423-428
69 S. Chandrasekhar* and Ch. Raji Reddy Towards a synthesis of epothilone A: asymmetric synthesis of C(1)-C(6) and C(7)-C(15) fragments Tetrahedron: Asymmetry 2002, 13, 261-268
68 S. Chandrasekhar,* N. Ramakrishna Reddy, M. Venkat Reddy, B. Jagannadh, A. Nagaraju, A. Ravi Sankar and A. C. Kunwar Highly efficient synthesis of 3-alkyl/aryl-4-aryl 1, 2, 3, 4-tetrahydroisoquinolines from N, N- dibenzyl aminols Tetrahedron Letters 2002, 43, 1885-1888
67 S. Chandrasekhar,* Ch. Raji Reddy, R. Jagadeeshwar Rao and J. Madusudana Rao Efficient and Chemoselective Deoxygenation of Amine N- Oxides using Polymethyl-hydrosiloxane Synlett 2002, 349-351
66 S. Chandrasekhar,* T. Ramachandar and B. Venkateshwara Rao Chiron approach to callipeltin A: first synthesis of fully protected (2R, 3R, 4S)-4,7-diamino-2,3-dihydroxy heptanoic acid Tetrahedron Asymmetry 2001, 12, 2315-2321
65 S. Chandrasekhar,*G. Rajaiah, L. Chandraiah and D. N. Swamy Direct conversion of tosylhydrazones to tert-butyl ethers under Bamford-Stevens reaction conditions Synlett 2001, 1779-1780  
64 S. Chandrasekhar,*Ch. Raji Reddy and R. Jagadeeshwar Rao Unprecedented Direct Conversion of N-N and N=N bonds to N-(tert-Bytyloxy)-carbamates Synlett 2001, 1561-1562
63 S. Chandrasekhar,* G. Rajaiah and P. Srihari New and practical synthesis of 1, 4-dihydrobenzopyrano pyrazoles Tetrahedron Letters 2001, 42, 6599-6601
62 S. Chandrasekhar,* S. Jayaprakash, V. Jagadeshwar and Ch. Narsimhulu Three component coupling catalyzed by TaCl5-SiO2: synthesis of a-aminophosphates Tetrahedron Letters 2001, 42, 5561-5563
61 S. Chandrasekhar,* Ch. Raji Reddy and R. Jagadeeshwar Rao Facile and selective cleavage of allyl ethers, amines and esters using polymethylhydrosiloxane-ZnCl2/Pd (PPh3)4 Tetrahedron 2001, 57, 3435-3438
60 S. Chandrasekhar,* T. Ramachandar and S. Jaya Prakash TaCl5-catalyzed cleavage of epoxides with aromatic amines Synthesis 2000, 1817-1818
59 S. Chandrasekhar* and M. Venkat Reddy Enantioselective Total Synthesis of Anti-hypertensive agent (S, R, R, R)-Nebivolol Tetrahedron 2000, 56, 6339-6344
58 S. Chandrasekhar,* M. Venkat Reddy and G. Rajaiah New entry to acyclic amines via alkylative fragmentation of cyclic aminoaldehyde tosylhydrazones Tetrahedron Letters 2000, 41, 10131-10134
57 S. Chandrasekhar* and Ch. Narsihmulu Direct conversion of azides to carbamates and sulfonamides using Fe/NH4Cl: effect of sonication Tetrahedron Letters 2000, 41, 7969-7972  
56 S. Chandrasekhar,* Ch. Raji Reddy and M. Ahmed A Single Step Reductive Amination of Carbonyl Compounds with Polymethylhydrosiloxane-Ti(OiPr)4 Synlett 2000, 1655-1657
55 S.Chandrasekhar,*M. Venkat Reddy and L. Chandraiah Onepot Conversion of Oximes to N-(tert-Butoxycarbonyl) Amines with Polymethylhydrosiloxane, Pd-C and Di-tert-butyldicarbonate Synlett 2000, 1351-1353
54 S. Chandrasekhar,* L. Chandraiah, Ch. Raji Reddy and M. Venkat Reddy Direct Conversion of Azides and Benzylcarbamates to t-butyl Carbamates using Polymethylhydrosiloxane and Pd-C Chemistry Letters 2000, 780-781  
53 S. Chandrasekhar,* M. Venkat Reddy, K. Srinivas Reddy and C. Ramarao Addition of carbon nucleophiles to aldehyde tosylhydrazones of aromatic and heteroaromatic compounds: total synthesis of piperine and analogs Tetrahedron Letters 2000, 41, 2667-2670
52 S. Chandrasekhar,* Ch. Raji Reddy and M. Venkat Reddy DDQ as a versatile reagent for the oxidative cleavage of tosyl hydrazones and oximes Chemistry Letters, 2000, 430-431
51 S. Chandrasekhar,* T. Ramachandar, M. Venkat Reddy and M. Takhi. A Single Step Conversion of Tetra hydropyranyl Ethers to Acetates J. Org. Chem. 2000, 65, 4729-4731
50 S. Chandrasekhar,* Ch. Srinivas, M. Suresh Kumar and B. Muralidhar Bromoacetone: A New Protective Group for 1,2-diols Cleavable with Zinc Synthetic Communications 2000, 30, 1147-1152
49 S. Chandrasekhar,* and M. Venkat Reddy An Expedient Total Synthesis of cis-(+)-Sertraline from D-(+)-Phenylglycine Tetrahedron 2000, 56, 1111-1114
48 S. Chandrasekhar,* M. B. Padmaja and A Raza A new cleavage strategy for Ester linked Polymer supports:  Generation of tertiary alcohol library J. Combinatorial Chem. 2000, 2, 246-248
47 S. Chandrasekhar* and M. Ahmed. Reductive opening of aziridines with polymethylhydrosiloxane Tetrahedron Letters 1999, 40, 9325-9327
46 S. Chandrasekhar,* P.  K. Mohanthy, K Harikishan, and P. K. Sasmal Unexpected Formation of 3 Substituted 1,2,3,4-Tehydroiso-quinolines During Tosylation of N,N-dibenzyl aminols Organic Letters 1999, 1, 877-878
45 S. Chandrasekhar,* M. B. Padmaja and A Raza Solid Phase-Solid State Synthesis of N-alkyl Imides from Anhydrides Synlett 1999, 1597-1599
44 S. Chandrasekhar,* M. Venkat Reddy and L. Chandraiah Inexpensive protocol for reduction of imines to amines using polymethylhydrosiloxane (PMHS) Synthetic Communications 1999, 29, 3981-3987
43 S. Chandrasekhar,* A Raza and M. B. Padmaja Novel Solid State Reduction of Organic Functional Groups on Solid-Support (Merrifield’s Resin) Synlett 1999, 1061-1062
42 J. S. Yadav,* S. Sarkar and S. Chandrasekhar A Convergent Total Synthesis of Mappicine Ketone: A Leading Antiviral Compound Tetrahedron 1999, 55, 5449-5456
41 S. Chandrasekhar* and P. K.Mohanty Stereoselective Synthesis of (+)-CP-99,994:  A substance P Non-peptide Antagonist Tetrahedron Letters 1999, 40, 5071-5072
40 S. Chandrasekhar,* P. K. Mohanty and T. Ramachandar One-pot Deprotective Oxidation of O-Allyl Ethers Using 70% tert-Butyl Hydroperoxide and Catalytic CrO3 Synlett 1999, 1063-1064
39 S. Chandrasekhar,* S Mohapatra and J. S.  Yadav Practical Synthesis of Abbott Amino Diol :  A Core Unit of the Potent Renin Inhibitor Zankiren Tetrahedron 1999, 55, 4763-4768
38 S. Chandrasekhar,* P. K.  Mohanty and A. Raza One Pot Synthesis of Acetylated Homoallyl Alcohols Synthetic Communications. 1999, 29, 257-262
37 J. S. Yadav,* K. V. Reddy, K. Rajshekar and S. Chandrasekhar Practical synthesis of pheromone components of achaea janta (Noctinidae) Synthetic Communications. 1998, 28, 4249-4255
36 S. Chandrasekhar,* Y R. Reddy and C. R Reddy Regioselective Reductive ring  Opening of 1,2 and 1,3 Benzylidene Acetals Chemistry Letters 1998, 1273-1274
35 S. Chandrasekhar,* M. Venkat Reddy and M. Takhi Caveat in Alkylative Fragmentation of Aldehyde Tosylhydrazones of Cyclic Ethers Tetrahedron Letters 1998, 39, 6535-6538  
34 S. Chandrasekhar* and S. Mohapatra Asymmetric Synthesis of Anti-Convulsive Drug(S)-VigabatrinÒ Tetrahedron Letters 1998, 39, 6415-6418.
33 S. Chandrasekhar* and B. V. Subba Reddy First TaCl5-SiO2 Catalysed Prins Reaction:  Comparative Study of Conventional Heating Vs. Microwave Irradiation Synlett 1998, 851-852
32 S. Chandrasekhar,* T. Ramachandar and M. Takhi Acylation of alcohols with acetic anhydride catalyzed by TaCl5:  Some implications in kinetic resolution Tetrahedron Letters 1998, 39, 3263-3266
31 S. Chandrasekhar* and S Sarkar Methylenephenylsulfone Appen-ded Acetals and Ketals:  New class of Carbonyl Protective Groups Cleavable by DBU Tetrahedron Letters 1998, 39, 2401-2404.
30 S. Chandrasekhar* and M. B. Padmaja Practical preparation of first carbon linked polymer bound 1,3-diol Synthetic Communications 1998, 28, 3715-3720
29 S. Chandrasekhar,* M. Suresh Kumar and B. Muralidhar One-pot Conversion of Carboxylic acids to Aldehydes with DIBAL-H Tetrahedron Letters 1998, 39, 909-910
28 S. Chandrasekhar* and S. Mohapatra Neighbouring Group Assisted Sulphonamide Cleavage of Sharp-less Aminols under Acetonation conditions Tetrahedron Letters 1998, 39, 695-698
27 J. S. Yadav,* S. Chandrasekhar and P. K. Sasmal First and stereoflexible synthesis of vinylogous side chains of Taxol Tetrahedron Letters 1997, 38, 8765-8768
26 S. Chandrasekhar,* M. Takhi and G. Uma Solvent free N-alkyl and N-arylimides preparation from An-hydrides catalysed by TaCl5-SiO2 Tetrahedron Letters 1997, 38, 8089-8092
25 S. Chandrasekhar,* M. Takhi, Y. R. Reddy, S. Mohapatra, C. R. Rao and K. Venkatram Reddy TaCl5-SiO2 and TaCl5 as Lewis acid systems for selective tetrahydropyranylation of alcohols and thioacetalisation, trimerisation and aldolisation of aldehydes Tetrahedron 1997, 53, 14997-15004
24 S. Chandrasekhar,* B. Muralidhar and S Sarkar A mild and convenient deprotection of 4-phenyl 1,3-dioxolane derivatives under catalytic hydrogenation Synthetic Communications 1997, 27, 2691-2694
23 J. R. Falck,* K. K.  Reddy and S Chandrasekhar Synthesis and Structure Revision of the myo-inositol Monophos-phatase Inhibitor L-671, 776 Tetrahedron  Letters 1997, 38, 5245-5248
22 S. Chandrasekhar,* Y. Ravindra Reddy and C. Rama Rao Chemoselective reduction of carbonyl compounds with PMHS-ZnCl2   Synthetic Communications 1997, 27, 2251-2254
21 S. Chandrasekhar* P. K Mohanty and M. Takhi A practical one pot di-O-silylation and deprotective oxi-dation of 10–O-silyl ether in 10,20-diols J. Org. Chem. 1997, 62, 2628-2629
20 S. Chandrasekhar,* K. Rajasekhar and Y. Ravindra Reddy Selective oxidative cleavage of dioxolane derivatives of sugars using FeCl3-NaIO4 Carbohydrate Letters 1997, 2, 217-219
19 S. Chandrasekhar,* M. Takhi and S. Mohapatra Tetramethylethylenediammonium dichromate (TMEDADC):  A new selective oxidation reagent Synthetic Communications 1996, 26, 3947-3951
18 J. S Yadav,* S. Chandrasekhar, G. Sumithra and K. Rajasekhar Selective and unprecedented oxidative deprotection of allyl ethers with DDQ Tetrahedron Letters 1996, 37, 6603-6606
17 S. Chandrasekhar,* S. Mohapatra and M. Takhi Practical and convenient reduction of sugar hydrazones to allyl alcohols Synlett 1996, 759-760
16 S. Chandrasekhar,* G. Sumithra and J. S Yadav Deprotection of mono and dimethoxy benzyl ethers with catalytic amounts of DDQ Tetrahedron Letters 1996, 37, 1645-1646
15 S. Chandrasekhar,* S. Mohapatra and S. Lakshman Study of Bamford-Stevens re-action on a-oxytosylhydrazones Chemistry Letters 1996, 211-212
14 J. S. Yadav,* S. Chandrasekhar and K. Rajasekhar Short and stereoselective Synthesis of Pheromone compo-nents of Aproaerema modicella Synthetic Communications 1995, 25, 4035-4043
13 J. S. Yadav,* C. Srinivas Rao, S. Chandrasekhar and A. V. Rama Rao Asymmetric Synthesis of C19 to C27 fragment of Rifamycin-S Tetrahedron Letters 1995, 36, 7717-7720
12 S. Chandrasekhar,* M. Takhi and J. S. Yadav An expeditious approach for the Synthesis of optically active allyl alcohols Tetrahedron Letters 1995, 36, 5071-5074
11 J. S. Yadav,* S. Chandrasekhar, Y. Ravindra Reddy and A. V. Rama Rao Synthesis of (2S, 3R)-3-hydroxy-leucine: A Constituent of lysobactin Tetrahedron 1995, 51, 2749-2754  
10 S. Chandrasekhar,* M. Takhi and J. S. Yadav Alkylative elimination of a, b-epoxy tosylhydrazones Tetrahedron Letters 1995, 36, 307-310
9 S. Chandrasekhar, J. Yu, J. R. Falck* and C. Mioskowski* SmI2 mediate reductive addition of Bis-phenylsulfones to ketones Tetrahedron Letters 1994, 35, 5441-5444
8 J. Yu, H. S. Cho, S. Chandrasekhar, J. R. Falck* and C. Mioskowski* Reductive lithiation of bis phenylsulfones Tetrahedron Letters 1994, 35, 5437-5440
7 S. Manna, S. Chandrasekhar, J. R. Falck,* C. Mioskowski and L. Alcaraz Terpenoid chirons:  Preparation and transformations of 2-hydroxyl 1,1,4a-(R)-6-tetra-methyl-trans-D5,6 octalin Tetrahedron Letters 1994, 35, 2013-2016
6 J. R. Falck,* S. Chandrasekhar, S. Manna, C. S. Chiu, C. Mioskowski* and I.  Wetzel Total Synthesis of the spiro-o-benzoquinonefuran (-)-stypol-dione J. Am. Chem. Soc. 1993, 115, 11606-11607
5 B. Heckmann, C. Alayrac, C. Mioskowski,* S. Chandrasekhar and J. R. Falck* Oxidative decarboxylation of mandelate ethers and   a-substituted phenyl acetates via dioxetanone generation Tetrahedron Letters 1992, 33, 5205-5208
4 G. V M  Sharma,* S. R Vepachedu and S. Chandrasekhar Synthesis of (3S, 4R)-(+)-3-methyl-4-butyl-octanolide from D-glucose Synthetic Communications 1990, 20, 3403-3410
3 A. V Rama Rao,*J. S Yadav, C. Srinivas Rao and S. Chandrasekhar Radical cyclization in stereospecific introduction of chirality at “Off Template Site” of 1,2-0-isoproplylidene-a-D-xylohexofuranose JCS Perkin Trans. I 1990, 1211-1212  
2 G. V. M.  Sharma* and S. Chandrasekhar Selective hydrogenation of organic azides by Interlamellar montmorillonite diphenyl phosphine palladium (II) catalyst Synthetic Communication 1989, 19, 3289-3293
1 A. V. Rama Rao.* J. S. Yadav, S. Chandrasekhar and C. Srinivas Rao Highly stereoselective approach for b-hydroxy-a-amino acids from D-glucose:  The Synthesis of MeBmt. Tetrahedron Letters 1989, 30, 6769-6772
CSIR |  Events |  Contact Us |  Feedback | fbfmi | twfmi | ytfmi
India   DigitalIndia   NGST   TransformIndia   NVSP   CVC  

Copyright: CSIR-IICT 2015

Visitiors  198791