The regioselective Larock indole synthesis catalyzed by NHC–palladium complexes
作者:Pan He、Yufeng Du、Gang Liu、Changsheng Cao、Yanhui Shi、Juan Zhang、Guangsheng Pang
DOI:10.1039/c3ra42788a
日期:——
The first practical and regioselective process for the synthesis of 2,3-disubstituted indoles from the reaction of o-iodoanilines or o-bromoanilines and their derivatives with symmetrical and unsymmetrical internal alkynes catalyzed by a ferrocene-functionalized N-heterocyclic carbene (NHC)âpalladium complex has been developed, and the indoles were isolated in good yields with high regioselectivity.