烯丙基对甲苯基亚砜通过初始质子异构化并随后添加甲醇而与甲醇钠甲醇反应,得到2-甲氧基丙基对甲苯基亚砜。与此相反,用哌啶的产率反应,作为主产物,烯丙醇和ñ - p -tolylsulphenylpiperidine。这些是通过亲核置换,在硫的异构体,烯丙基甲苯形成p -sulphenate其与亚砜平衡。
The Epoxidation of Carbonyl Compounds with a Benzyne-Triggered Sulfur Ylide
作者:Mei-Mei Lou、Han Wang、Li Song、Hong-Yi Liu、Zhong-Qiu Li、Xiao-Shuang Guo、Fu-Geng Zhang、Bin Wang
DOI:10.1021/acs.joc.6b00760
日期:2016.7.15
An efficient method for the synthesis of epoxides from carbonylcompounds, sulfoxides, and benzyne is presented. The strategy involved an epoxidation by a sulfur ylide which is formed in situ from sulfoxide and benzyne through the S–O bond insertion and deprotonation. This one-pot reaction proceeds under mild and base-free conditions, providing a convenient way to introduce the substituted methylene