Facile and highly stereoselective synthesis of cis-trimethylsilylethynyl epoxides via a silylated telluronium ylide
作者:Zhang-Lin Zhou、Yao-Zeng Huang、Li-Lan Shi
DOI:10.1039/c39920000986
日期:——
Diisobutyltelluronium trimethylsilylpropynyl ylide, generated from 3-trimethylsilylprop-2-ynyldiisobutyltelluronium bromide with lithium 2,2,6,6-tetramethylpiperidide (LiTMP), reacts with carbonyl compounds to afford predominately cis-trimethylsilylethynyl epoxides in good to excellent yields.
由3-三甲基甲硅烷基丙-2-炔基二异丁基碲化溴化锂与2,2,6,6-四甲基哌啶锂(LiTMP)生成的二异丁基碲铝三甲基甲硅烷基丙炔基内酯与羰基化合物反应生成主要为顺式-三甲基甲硅烷基乙炔基环氧化物,收率良好。