Unique zeolite-catalyzed synthesis of nitroketene S,N-acetals
作者:T.Indrasena Reddy、Baburao M. Bhawal、Srinivasachari Rajappa
DOI:10.1016/s0040-4020(01)86309-2
日期:1993.3
7a–c) derived from various primary amines and amino acid esters [glycine, (L)-alanine and (L)-phenylalanine] have been condensed with nitromethane in the presence of the rare-earth exchanged zeolite RE(70%)Na Y to give the S,N-acetals (5a–g, 8a–c). Mercuric chloride catalyzed hydrolysis of these (8a–c) has led to the nitroacetyl derivatives (9a–c). The glycine derivative (7a) gives a dimeric product
Catalytic and computer simulation studies of carbon-sulphur bond cleavage over zeolite-Y
作者:B. M. Bhawal、R. Vetrivel、T. Indrasena Reddy、A. R. A. S. Deshmukh、S. Rajappa
DOI:10.1002/poc.610070708
日期:1994.7
undergo carbon–carbon bond formation followed by carbon–sulphurbondcleavage in the presence of zeolite catalysts to give 1-substituted amino-1-methylthio-2-nitroethenes. This carbon-sulphurbondcleavage is facilitated by the presence of rare earth cations in the zeolite-Y framework. The shape selectivity of the zeolite also plays an important role in this cleavagereaction. Force field calculations
Anbazhagan, Mariappan; Reddy, T. Indrasena; Rajappa, Srinivasachari, Journal of the Chemical Society. Perkin transactions I, 1997, # 11, p. 1623 - 1627
作者:Anbazhagan, Mariappan、Reddy, T. Indrasena、Rajappa, Srinivasachari
DOI:——
日期:——
Triphosgene: a versatile reagent for the synthesis of azetidin-2-ones
An efficient use of triphosgene, as an acid activator, for the synthesis of substituted azetidin-2-ones via ketene-imine cyclo-addition reaction using various acids and imines have been described. (C) 2002 Elsevier Science Ltd. All rights reserved.
Deshmukh, Abdul Rakeeb A. S.; Reddy, T. Indrasena; Bhawal, Baburao M., Journal of the Chemical Society. Perkin transactions I, 1990, # 4, p. 1217 - 1218
作者:Deshmukh, Abdul Rakeeb A. S.、Reddy, T. Indrasena、Bhawal, Baburao M.、Shiralkar, Vasudeo P.、Rajappa, Srinivasachari