Sharma; Bhatia, Journal of the Indian Chemical Society, 1991, vol. 68, # 11, p. 612 - 614
作者:Sharma、Bhatia
DOI:——
日期:——
Reaction of 3-aryl-2-cyanothioacrylamides with dimethyl acetylenecarboxylate, methyl propiolate, and N-phenylmaleimide
作者:T. G. Deryabina、M. A. Demina、N. P. Belskaya、V. A. Bakulev
DOI:10.1007/s11172-006-0204-4
日期:2005.12
The reaction of cyanothioacrylamides with dimethyl acetylenedicarboxylate, methylpropiolate, and N-phenylmaleimide was studied. The reaction follows a cycloaddition pathway to give thiopyrans, irrespective of the electronic or spatial effects of the substituents in the thioamide group and in position 3 of the 1-thiabuta-1,3-diene system. The reaction is regio-and stereoselective.