Nickel-Catalyzed Enantio- and Diastereoselective Three-Component Coupling of 1,3-Dienes, Aldehydes, and a Silylborane Leading to α-Chiral Allylsilanes
作者:Nozomi Saito、Ayami Kobayashi、Yoshihiro Sato
DOI:10.1002/anie.201107360
日期:2012.1.27
Three‐in‐one: The nickel‐catalyzed asymmetric three‐component coupling of 1,3‐dienes, aldehydes, and a silylborane in the presence of a chiral phosphoroamidite ligand has been realized. The reaction proceeds by σ‐bond metathesis of an oxanickelacycle intermediate with the silylborane to afford the corresponding α‐chiral allylsilane derivative in a highly diastereo‐ and enantioselective manner.
三合一:在手性亚磷酰胺配体的存在下,已实现了镍催化的1,3-二烯,醛和甲硅烷基硼烷的不对称三组分偶联。该反应通过氧杂ickelacycle中间体与甲硅烷基硼烷的σ键复分解而进行,从而以高度非对映和对映选择性的方式提供相应的α-手性烯丙基硅烷衍生物。