The chalcogeno-Baylis-Hillman reaction: a new preparation of allylic alcohols from aldehydes and electron-deficient alkenes
作者:Tadashi Kataoka、Tetsuo Iwama、Shin-ichiro Tsujiyama、Tatsunori Iwamura、Shin-ichi Watanabe
DOI:10.1016/s0040-4020(98)83041-x
日期:1998.9
The chalcogeno-Baylis-Hillman reaction catalyzed by sulfides and selenides, the group 16 element compounds, in the presence of Lewis acids was developed. The reactions proceeded smoothly by the use of 1 equiv of TiCl4 to give the coupling products in moderate to good yields. Bis-chalcogenides and related compounds were investigated as a catalyst, and 1,5-diselenocyclooctane gave the best result owing
在路易斯酸的存在下,开发了由硫化物和硒化物(第16组元素化合物)催化的硫属元素-Baylis-Hillman反应。通过使用1当量的TiCl 4使反应顺利进行,以中等至良好的产率得到偶联产物。研究了双硫族化物和相关化合物作为催化剂,由于阳离子中间体通过跨环相互作用而稳定,因此1,5-二硒代环辛烷的效果最佳。