Diversity-orientated synthesis of 3,5-bis(arylamino)pyrazoles
摘要:
The synthesis of differentially-substituted 3,5-bis(arylamino)pyrazoles has not yet been documented. During our investigation, we managed to develop a novel, entirely combinatorial synthesis of 3,5-bis(arylamino)pyrazoles relying on a simple one-pot two-step operation. (C) 2011 Elsevier Ltd. All rights reserved.
Reactions of malonodithioamides with acetylenedicarboxylic esters
作者:K. L. Obydennov、M. F. Kosterina、E. L. Klimareva、V. A. Bakulev、Yu. Yu. Morzherin
DOI:10.1007/s11172-011-0159-y
日期:2011.5
Reactions of malonothioamides with acetylenedicarboxylates proceed as an addition of the sulfur atom at the triple bond with subsequent intramolecular reaction between the ester group and the nitrogen atom, that leads to substituted thiazolidines. Unsubstituted malonodithioamide and N-cyclohexylmalonodithioamide give adducts involving both thioamide fragments, whereas N,N′-bis(4-methoxyphenyl)malonodithioamide