Synthesis of Fluorenes Starting from 2-Iodobiphenyls and CH<sub>2</sub>Br<sub>2</sub> through Palladium-Catalyzed Dual C–C Bond Formation
作者:Guangfa Shi、Dushen Chen、Hang Jiang、Yu Zhang、Yanghui Zhang
DOI:10.1021/acs.orglett.6b01300
日期:2016.6.17
for the synthesis of fluorene and its derivatives starting from 2-iodobiphenyls and CH2Br2. A range of fluorene derivatives can be synthesized under relatively mild conditions. The reaction proceeds via a tandem palladium-catalyzed dual C–C bond formation sequence through the key dibenzopalladacyclopentadiene intermediates, which are obtained from 2-iodobiphenyls through palladium-catalyzed C–H activation
开发了一种简便有效的方法来合成芴及其衍生自2-碘联苯和CH 2 Br 2的衍生物。可以在相对温和的条件下合成一系列芴衍生物。反应是通过关键的二苯并钯铝环戊二烯中间体,通过串联的钯催化的双C–C键形成序列进行的,该中间体是通过钯催化的C–H活化作用从2-碘代联苯中获得的。