Enantioselective Synthesis of α-Tri- and α-Tetrasubstituted Allylsilanes by Copper-Catalyzed Asymmetric Allylic Substitution of Allyl Phosphates with Silylboronates
作者:Momotaro Takeda、Ryo Shintani、Tamio Hayashi
DOI:10.1021/jo400888b
日期:2013.5.17
copper/N-heterocyclic carbene-catalyzed asymmetric allylic substitution of allyl phosphates with a silylboronate has been developed to give highly enantioenriched allylsilanes. High regioselectivity has been achieved by employing NaOH as the base, and this catalyst system is effective for both γ-mono- and disubstituted allyl phosphates.
已经开发了铜/ N-杂环卡宾催化的用甲硅烷基硼酸酯的磷酸烯丙酯的不对称烯丙基取代基,以得到高度对映体富集的烯丙基硅烷。通过使用NaOH作为碱已经实现了高区域选择性,并且该催化剂体系对于γ-单-和二取代的烯丙基磷酸酯都是有效的。