Asymmetric cyanation of a class of easily available olefins with a favorable cyanide source ethyl cyanoformate (CNCOOEt) was realized by an interesting modular catalyst. High yields and ee values were obtained for a range of substrates under solvent-free and mild reaction conditions. The products obtained could be easily transformed to the enantioenriched useful intermediates 5, 6, and pharmaceutically important gamma-aminobutyric acid 7.
JPS57102854A
申请人:——
公开号:JPS57102854A
公开(公告)日:1982-06-26
An efficient hydrocyanation of α, β-unsaturated diesters with TMSCN catalyzed by MgI<sub>2</sub> etherate
作者:Haokun Pan、Hua Li、Huijun Liu、Xingxian Zhang
DOI:10.1080/10426507.2019.1700377
日期:2020.5.3
Abstract A mild, efficient and highly regioselective addition of trimethylsilyl cyanide (TMSCN) to α,β-unsaturated diesters has been achieved by using MgI2 etherate as catalystundersolvent-freeconditions. This protocol provides the corresponding β-cyano esters in high yields. Graphical Abstract