A Highly Strained Planar-Chiral Platinacycle for Catalytic Activation of Internal Olefins in the Friedel-Crafts Alkylation of Indoles
作者:Haoxi Huang、René Peters
DOI:10.1002/anie.200804944
日期:2009.1.5
Activation by deformation: A planar‐chiral platinacycle readily prepared by diastereoselective cycloplatination enables the enantioselective intramolecular hydroarylation of indoles having disubstituted Z olefins (see scheme; Ts=p‐tolylsulfonyl). Sufficient activity is achieved by a combination of highlystrained catalyst geometry and accelerated olefin coordination. This application represents the