142311-83-9Relevant articles and documents
Conversion of carbonimidodithioates to carbamates
Anbazhagan, Mariappan,Reddy, T. Indrasena,Rajappa, Srinivasachari
, p. 1623 - 1627 (2007/10/03)
Carbonimidodithioates derived from primary amines or α-amino acid esters have been converted to N-benzyloxycarbonyl derivatives under mild conditions by treatment first with sodium benzyl alcoholate and then with water. N-Benzyloxycarbonyl α-amino acids have been generated from the methyl esters by alkaline hydrolysis or from the allyl esters by Pd0-catalysed de-allylation.
Unique zeolite-catalyzed synthesis of nitroketene S,N-acetals
Indrasena Reddy,Bhawal, Baburao M.,Rajappa, Srinivasachari
, p. 2101 - 2108 (2007/10/02)
Dimethyl carbonimidodithioates (4a-g, 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 (11) when heated alone with the zeolite.
A facile general method for the preparation of s-methyl thiolcarbamates using zeolite catalysts
Reddy, T. Indrasena,Bhawal,Rajappa
, p. 2857 - 2860 (2007/10/02)
Dimethyl carbonimidodithioates derived from various primary amines and amino acid esters (1) can be converted to S-methyl thiolcarbamates (2) by H-mordenite or H-Y zeolite catalysis in moderate to good yields.
