First Example of Highly Stereoselective Synthesis of 1,2,3-Trisubstituted Cyclopropanes via Chiral Selenonium Ylides
作者:Hai-Yang Wang、Fei Yang、Xin-Liang Li、Xue-Ming Yan、Zhi-Zhen Huang
DOI:10.1002/chem.200801936
日期:2009.4.6
A new strategy for the highly stereoselective synthesis of three stereoisomers of chiral 1,2,3‐trisubstituted cyclopropanes in good yields with excellent diastereoselectivities and very high enantioselectivities (up to >99 % ee) was developed via selenonium ylides (see scheme). Possible pathways for the asymmetric cyclopropanations were also proposed.
通过硒化叶立德开发了一种新的策略,该策略以高收率,极好的非对映选择性和极高的对映选择性(高达> 99%ee)(见方案),以高收率选择性合成了手性1,2,3-三取代环丙烷的三种立体异构体。还提出了不对称环丙烷化的可能途径。