作者:Meng-Yang Chang、Yi-Hsuan Huang、Heui-Sin Wang
DOI:10.1016/j.tet.2016.04.018
日期:2016.6
A facile route toward 1,1-diarylethylenes 6 has been developed in good yields via mCPBA-promoted oxidation of β-hydroxysulfides 2, BF3·OEt2-mediated Friedel–Crafts reaction of the resulting β-hydroxysulfoxides 3 with oxygenated benzenes 4, followed by Pd/C-mediated [2,3]-sigmatropic rearrangement of sulfoxides 5. The protocol provides a short-term, easy-operational, inexpensive reagent, mild condition
通过m CPBA促进的β-羟基硫化物2,BF 3 ·OEt 2介导的Friedel-Crafts反应生成的β-羟基亚砜3与含氧苯4的反应,已经以高收率开发了一条通往1,1-二芳基乙烯6的简便路线。,然后是Pd / C介导的亚砜5的[2,3]-σ重排。该协议提供了一种短期,易于操作,廉价的试剂,温和的条件以及可快速获得的转化方法。