Monothioacetalization of acetals catalyzed by dicyanoketene acetals
T Miura, Y Masaki
Index: Miura, Tsuyoshi; Masaki, Yukio Tetrahedron, 1995 , vol. 51, # 38 p. 10477 - 10486
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Citation Number: 12
Abstract
A type of capto-dative olefin, dicyanoketene acetal such as dicyanoketene dimethyl acetal and ethylene acetal is introduced to be a novel type of π-acid catalyst for the monothioacetalization of acetals as well as the corresponding α, β-unsaturated systems. Particularly, the catalytic activity of dicyanoketene ethylene acetal was found to be superior to that of tetracyanoethylene and highly chemoselective in the crossover reaction of a ...
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