Narsihmulu, Ch.: search on Z-Library

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1

Direct condensation of carboxylic acids with polyethylene glycols catalyzed by Sc(OTf)3

S Chandrasekhar, S Shameem Sultana, Ch Narsihmulu, J.S Yadav, R Gree, J.C Guillemin

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 161 KB

english, 2002

2

Poly(ethyleneglycol) (PEG): a rapid and recyclable reaction medium for the DABCO-catalyzed Baylis–Hillman reaction

S Chandrasekhar, Ch Narsihmulu, B Saritha, S Shameem Sultana

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 233 KB

english, 2004

3

L-Proline Catalyzed Asymmetric Transfer Aldol Reaction Between Diacetone Alcohol and Aldehydes.

S. Chandrasekhar, Ch. Narsihmulu, N. Ramakrishna Reddy, S. Shameem Sultana

Journal:

Year:

2005

File:

PDF, 18 KB

2005

4

Pd/CaCO3 in liquid poly(ethylene glycol) (PEG): an easy and efficient recycle system for partial reduction of alkynes to cis-olefins under a hydrogen atmosphere

S. Chandrasekhar, Ch. Narsihmulu, G. Chandrashekar, T. Shyamsunder

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 274 KB

english, 2004

5

ChemInform Abstract: Three-Component Coupling Catalyzed by TaCl5—SiO2: Synthesis of α-Amino Phosphonates.

S. Chandrasekahr, S. Jaya Prakash, V. Jagadeshwar, Ch. Narsihmulu

Journal:

Year:

2001

File:

PDF, 34 KB

2001

6

The first stereoselective total synthesis of (6S)-5,6-dihydro-6-[(2R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana, M. Srinivasa Reddy

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 255 KB

english, 2004

7

Ceric ammonium nitrate (CAN) catalyzed ring cleavage of N-tosyl aziridines: a potential tool for solution phase library generation

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 104 KB

english, 2002

8

Three component coupling catalyzed by TaCl5–SiO2: synthesis of α-amino phosphonates

S Chandrasekhar, S.Jaya Prakash, V Jagadeshwar, Ch Narsihmulu

Journal:

Tetrahedron Letters

Year:

2001

Language:

english

File:

PDF, 85 KB

english, 2001

9

Poly(ethylene glycol) (PEG) as a Reusable Solvent Medium for Organic Synthesis. Application in the Heck Reaction †

Chandrasekhar, S., Narsihmulu, Ch., Sultana, S. Shameem, Reddy, N. Ramakrishna

Journal:

Organic Letters

Year:

2002

Language:

english

File:

PDF, 59 KB

english, 2002

10

Solvent and Catalyst Free Three-component Coupling of Carbonyl Compounds, Amines and Triethylphosphite; a new Synthesis of α-Aminophosphonates

Chandrasekhar, S., Narsihmulu, Ch., Sultana, S. Shameem, Saritha, B., Prakash, S. Jaya

Journal:

Year:

2003

Language:

english

File:

PDF, 42 KB

english, 2003

11

Direct conversion of azides to carbamates and sulfonamides using Fe/NH4Cl: effect of sonication

S Chandrasekhar, Ch Narsihmulu

Journal:

Tetrahedron Letters

Year:

2000

Language:

english

File:

PDF, 102 KB

english, 2000

12

l-Proline catalyzed asymmetric transfer aldol reaction between diacetone alcohol and aldehydes

Chandrasekhar, S., Narsihmulu, Ch., Reddy, N. Ramakrishna, Sultana, S. Shameem

Journal:

Chemical Communications

Year:

2004

Language:

english

File:

PDF, 210 KB

english, 2004

13

Poly(ethylene glycol) (PEG) as a Reusable Solvent Medium for Organic Synthesis. Application in the Heck Reaction.

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana, N. Ramakrishna Reddy

Journal:

Year:

2003

File:

PDF, 144 KB

2003

14

Solvent and Catalyzed Free Three-Component Coupling of Carbonyl Compounds, Amines and Triethylphosphite; a New Synthesis of α-Aminophosphonates.

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana, B. Saritha, S. Jaya Prakash

Journal:

Year:

2003

File:

PDF, 145 KB

2003

15

Pd/CaCO3 in Liquid Poly(ethylene glycol) (PEG): An Easy and Efficient Recycle System for Partial Reduction of Alkynes to cis-Olefins under a Hydrogen Atmosphere.

S. Chandrasekhar, Ch. Narsihmulu, G. Chandrashekar, T. Shyamsunder

Journal:

Year:

2004

File:

PDF, 81 KB

2004

16

Ceric Ammonium Nitrate (CAN) Catalyzed Ring Cleavage of N-Tosyl Aziridines: A Potential Tool for Solution Phase Library Generation.

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana

Journal:

Year:

2002

File:

PDF, 33 KB

2002

17

Design, synthesis and cytotoxic studies on the simplified oxy analog of eleutherobin

S Chandrasekhar, V Jagadeshwar, Ch Narsihmulu, M Sarangapani, D.R Krishna, J Vidyasagar, Dolly Vijay, G.Narahari Sastry

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2004

Language:

english

File:

PDF, 275 KB

english, 2004

18

Hydroxy-assisted catalyst-free Michael addition-dehydroxylation of Baylis–Hillman adducts in poly(ethylene glycol)

S. Chandrasekhar, B. Saritha, V. Jagadeshwar, Ch. Narsihmulu, Dolly Vijay, G. Dattatreya Sarma, B. Jagadeesh

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 103 KB

english, 2006

19

Asymmetric Synthesis of a Protected Dihydroxypiperazic Acid Derivative

Chandrasekhar, S., Parimala, Ganney, Tiwari, Bhoopendra, Narsihmulu, Ch., Sarma, G.

Journal:

Year:

2007

Language:

english

File:

PDF, 128 KB

english, 2007

20

Design, Synthesis and Cytotoxic Studies on the Simplified Oxy Analogue of Eleutherobin.

S. Chandrasekhar, V. Jagadeshwar, Ch. Narsihmulu, M. Sarangapani, D. R. Krishna, J. Vidyasagar, Dolly Vijay, G. Narahari Sastry

Journal:

Year:

2004

Language:

english

File:

PDF, 20 KB

english, 2004

21

Hydrogenation and Hydrogenolysis with Pd/C in Poly(Ethylene Glycol) (PEG): A Practical and Recyclable Medium

Chandrasekhar, S., Shyamsunder, T., Chandrashekar, G., Narsihmulu, Ch.

Journal:

Year:

2004

Language:

english

File:

PDF, 41 KB

english, 2004

22

Asymmetric Aldol Reactions in Poly(ethylene Glycol) Catalyzed by L-Proline.

S. Chandrasekhar, Ch. Narsihmulu, N. Ramakrishna Reddy, S. Shameem Sultana

Journal:

Year:

2004

File:

PDF, 85 KB

2004

23

Poly(ethyleneglycol) (PEG): A Rapid and Recyclable Reaction Medium for the DABCO-Catalyzed Baylis—Hillman Reaction.

S. Chandrasekhar, Ch. Narsihmulu, B. Saritha, S. Shameem Sultana

Journal:

Year:

2004

File:

PDF, 18 KB

2004

24

Osmium Tetroxide in Poly(ethylene glycol) (PEG): A Recyclable Reaction Medium for Rapid Asymmetric Dihydroxylation under Sharpless Conditions.

S. Chandrasekhar, Ch. Narsihmulu, S. Shameem Sultana, N. Ramakrishna Reddy

Journal:

Year:

2003

File:

PDF, 117 KB

2003

25

Asymmetric aldol reactions in poly(ethylene glycol) catalyzed by l-proline

S. Chandrasekhar, Ch. Narsihmulu, N.Ramakrishna Reddy, S.Shameem Sultana

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 226 KB

english, 2004

26

Ultrasound-Promoted “One-Pot” Conversion of Nitro Compounds to Carbamates.

S. Chandrasekhar, Ch. Narsihmulu, V. Jagadeshwar

Journal:

Year:

2002

File:

PDF, 28 KB

2002

27

Asymmetric synthesis of (+)-tetrahydropseudodistomin

S. Chandrasekhar, S. Shameem Sultana, N. Kiranmai, Ch. Narsihmulu

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 123 KB

english, 2007

28

Triethylborane triggered intermolecular domino Michael–aldol three-component coupling reactions

S. Chandrasekhar, Ch. Narsihmulu, N.Ramakrishna Reddy, M.Srinivasa Reddy

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 207 KB

english, 2003

29

ChemInform Abstract: Direct Conversion of Azides to Carbamates and Sulfonamides Using Fe/NH4Cl: Effect of Sonication.

S. Chandrasekhar, Ch. Narsihmulu

Journal:

Year:

2001

File:

PDF, 32 KB

2001

30

l-Proline catalysed asymmetric aldol reactions in PEG-400 as recyclable medium and transfer aldol reactions

S. Chandrasekhar, N. Ramakrishna Reddy, S. Shameem Sultana, Ch. Narsihmulu, K. Venkatram Reddy

Journal:

Year:

2006

Language:

english

File:

PDF, 282 KB

english, 2006

31

Ultrasound Promoted ‘One Pot’ Conversion of Nitrocompounds to Carbamates

Chandrasekhar, S., Narsihmulu, Ch., Jagadeshwar, V.

Journal:

Year:

2002

Language:

english

File:

PDF, 43 KB

english, 2002

32

Triethylborane-Triggered Intermolecular Domino Michael—Aldol Three-Component Coupling Reactions.

S. Chandrasekhar, Ch. Narsihmulu, N. Ramakrishna Reddy, M. Srinivasa Reddy

Journal:

Year:

2003

File:

PDF, 111 KB

2003

33

Hydrogenation and Hydrogenolysis with Pd/C in Poly(ethylene glycol) (PEG): A Practical and Recyclable Medium.

S. Chandrasekhar, T. Shyamsunder, G. Chandrashekar, Ch. Narsihmulu

Journal:

Year:

2004

File:

PDF, 97 KB

2004

34

Osmium tetroxide in poly(ethylene glycol) (PEG): a recyclable reaction medium for rapid asymmetric dihydroxylation under Sharpless conditionsDedicated to Prof. Goverdhan Mehta on his 60th birthday.Electronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b305154b/

Chandrasekhar, S., Narsihmulu, Ch., Sultana, S. Shameem, Reddy, N. Ramakrishna

Journal:

Chemical Communications

Year:

2003

Language:

english

File:

PDF, 110 KB

english, 2003

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