Asymmetric Cyclopropanation of Alkenes with Dimethyl Diazomalonate Catalyzed by Chiral Diene-Rhodium Complexes
作者:Takahiro Nishimura、Yuko Maeda、Tamio Hayashi
DOI:10.1002/anie.201003775
日期:——
Chiral tridentate ligand: A chiral diene–rhodium complex (1; see scheme) was found to catalyze the intermolecular asymmetric cyclopropanation of alkenes with dimethyl diazomalonate to give 1,1‐cyclopropane diesters in good yields and with high enantioselectivity.
手性三齿配体:手性二烯-铑配合物(1 ;参见方案)被发现催化烯烃与分子间不对称环丙烷二甲diazomalonate,得到良好的产率和高对映选择性1,1-环丙烷二酯。