New Chiral Sulfoxide Ligands Possessing a Phosphano or Phosphanoamino Functionality in Palladium-Catalyzed Asymmetric Allylic Nucleophilic Substitution Reactions
作者:Kunio Hiroi、Yoshio Suzuki、Ikuko Abe、Ryoko Kawagishi
DOI:10.1016/s0040-4020(00)00393-8
日期:2000.6
New chiral sulfoxide ligands possessing a phosphano or phosphanoamino functionality as an alternative coordinating element were developed, and their usefulness was demonstrated by applying them to palladium-catalyzed asymmetric allylic nucleophilic substitution reactions. The structure of the catalyst precursor coordinated by the chiral phosphino sulfoxide was determined by X-ray crystallographic analysis
开发了具有膦或膦氨基官能团作为替代配位元件的新手性亚砜配体,并将其应用于钯催化的不对称烯丙基亲核取代反应中,证明了其有用性。通过X射线晶体学分析确定由手性膦亚砜配位的催化剂前体的结构。根据获得的立体化学结果,提出了使用这些手性配体进行不对称诱导的可能机理。