La反应a lieu en 3 etapes pour conduire a un thiocarboxylate de mercapto-2ethyle, ce quimet en jeu l'ion dithiolanne-1,3ium-2 et le dithiolanne-1,3ol-2 comme intermediaires
La反应a lieu en 3 etapes pour conduire a un thiocarboxylate de mercapto-2ethyle, ce quimet en jeu l'ion dithiolanne-1,3ium-2 et le dithiolanne-1,3ol-2 comme intermediaires
Isolation of Dithiolanylium Salts and Their Conversion to Ketene Dithioacetals and Ortho Esters
作者:Tadashi Okuyama、Wataru Fujiwara、Takayuki Fueno
DOI:10.1246/bcsj.59.453
日期:1986.2
prepared by the reaction of 1,2-ethanedithiol with acyl chlorides in the presence of perchloric acid. Treatments of 1 with triethylamine gave 2-alkylidene-1,3-dithiolane (2) when the 2-substituent was a primary or secondary alkyl group. 2-Aryl derivatives of 1 were converted to ortho esters by the reaction with methanol in the presence of silver nitrate. 1,3-Dithian-2-ylium perchlorates and 2-alkylidene-1