Enantioselective Synthesis of Tertiary and Quaternary Stereogenic Centers: Copper/Phosphoramidite-Catalyzed Allylic Alkylation with Organolithium Reagents
作者:Martín Fañanás-Mastral、Manuel Pérez、Pieter H. Bos、Alena Rudolph、Syuzanna R. Harutyunyan、Ben L. Feringa
DOI:10.1002/anie.201107840
日期:2012.2.20
An efficient and highly enantioselective copper‐catalyzed allylic alkylation of disubstituted allyl halides with primary and secondary organolithium reagents using phosphoramidite ligands is reported. The use of trisubstituted allyl bromides allows, for the first time, the enantioselective synthesis of all‐carbon quaternary stereogenic centers with these reactive organometallic reagents.
报道了使用亚磷酰胺配体的伯和仲有机锂试剂对二取代的烯丙基卤进行高效且高度对映选择性的铜催化的烯丙基烷基化反应。三取代的烯丙基溴的使用首次允许使用这些反应性有机金属试剂对全碳四元立体异构中心进行对映选择性合成。