作者:Brendan M. Monks、Silas P. Cook
DOI:10.1021/ja307761f
日期:2012.9.19
A palladium-catalyzed alkyne insertion/Suzuki reaction with unactivated alkyl iodides is described. Under the reaction conditions, selective migratory insertion of alkynes avoids β-hydride elimination and provides a facile synthesis of stereodefined, tetrasubstituted olefins. The transformation offers broad substrate scope for both the alkyl iodide and boron nucleophile. Mechanistic studies have revealed
描述了钯催化的炔插入/铃木反应与未活化的烷基碘。在反应条件下,炔烃的选择性迁移插入避免了β-氢化物消除,并提供了立体定义的四取代烯烃的简便合成。该转化为烷基碘和硼亲核试剂提供了广泛的底物范围。机理研究揭示了带有碘化物的碳的立体中心反转。