Efficient synthesis of an enantiomeric pair pinpinidine: An illustration of organochemical carving on the rigid bridged system as the stereochemical tactics
作者:Takefumi Momose、Takashi Nishio、Masayuki Kirihara
DOI:10.1016/0040-4039(96)00990-2
日期:1996.7
Asymmetric synthesis of (−)-pinidine and its enantiomer was accomplished by starting from norgranatar one via the asymmetric enolization, stereoselective cyclopropanation, and oxidative ring cleavage of the resulting cyclopropanol system with a hypervalent iodoid as key steps.
(-)-吡啶和其对映异构体的不对称合成是通过从炔诺酮开始,通过不对称烯醇化,立体选择性环丙烷化和所得环丙醇系统的氧化环裂解(以高价碘)为关键步骤来完成的。