Palladium-Catalyzed Cross-Coupling Reaction of Secondary Benzylic Bromides with Grignard Reagents
作者:Ana López-Pérez、Javier Adrio、Juan C. Carretero
DOI:10.1021/ol902335c
日期:2009.12.3
A mild palladium-catalyzed Kumada−Corriu reaction of secondary benzylic bromides with aryl and alkenyl Grignard reagents has been developed. In the presence of the Xantphos ligand, the undesired β-elimination pathway is minimized, affording the corresponding cross-coupling products in acceptable to good yields. The reaction proceeds with inversion of the configuration.
已开发出中等温和的钯催化仲苄基溴化物与芳基和烯基格利雅试剂的Kumada-Corriu反应。在Xantphos配体的存在下,不希望有的β-消除途径被最小化,以可接受的产率提供了相应的交叉偶联产物。反应随着构型的反转而进行。