作者:Eun Bok Choi、In Kwon Youn、Chwang Siek Pak
DOI:10.1055/s-1991-26366
日期:——
2-Acetyl(ethoxycarbonyl)methylene-1,3-dithietane and -dithiane (1) were condensed with various aldehydes or ketones to afford high yields of the corresponding substituted 2-(1-carboxy-2-oxo-3-butenylidene)-1,3-dithietanes and -dithianes 4, which upon heating decarboxylated smoothly to give the title compounds in high yield.
2-乙酰基(乙氧羰基)亚甲基-1,3-二硫杂环戊烷和-二硫杂环己烷(1)与各种醛或酮缩合,以高产率得到相应的取代的2-(1-羧基-2-氧代-3-丁烯亚基)-1,3-二硫杂环戊烷和-二硫杂环己烷4,这些化合物在加热下顺利脱羧,以高产率得到标题化合物。