Cu(I)-Catalyzed Tandem Reaction of Carbene Coupling and Horner–Wadsworth–Emmons Type Olefination: Access toward Enynes
作者:Yujing Zhou、Fei Ye、Qi Zhou、Yan Zhang、Jianbo Wang
DOI:10.1021/acs.orglett.6b00631
日期:2016.5.6
1,3-enynes has been successfully developed based on Cu(I)-catalyzed cross-coupling of α-diazo phosphonates and alkynes with a subsequent Horner–Wadsworth–Emmons (HWE) type reaction. This method provides straightforward access to conjugated enynes with high efficiency, good stereoselectivity and excellent functional group compatibility. Copper(I) carbene migratory insertion plays a crucial role in this
基于Cu(I)催化的α-重氮膦酸酯和炔烃与随后的Horner-Wadsworth-Emmons(HWE)型反应的交叉偶联,已经成功开发了一种合成1,3-烯炔的新策略。该方法可高效,良好的立体选择性和出色的官能团相容性,直接获得共轭烯类。铜(I)卡宾迁移插入在此转变中起关键作用。