Silica-Immobilized Chiral Dirhodium(II) Catalyst for Enantioselective Carbenoid Reactions
作者:Kathryn M. Chepiga、Yan Feng、Nicholas A. Brunelli、Christopher W. Jones、Huw M. L. Davies
DOI:10.1021/ol403006r
日期:2013.12.20
A silica-supported dirhodium(II) tetraprolinate catalyst was synthesized in four steps from l-proline and used in a range of enantioselective transformations of donor/acceptor carbenoids. These include cyclopropenation, cyclopropanation, tandem ylide formation/[2,3] sigmatropic rearrangement, and a variety of combined C–H functionalization/Cope rearrangement reactions. The products of these transformations