Pd-Catalyzed Heck-Type Cascade Reactions with <i>N</i>-Tosyl Hydrazones: An Efficient Way to Alkenes via in Situ Generated Alkylpalladium
作者:Xianglei Liu、Xinna Ma、Yunze Huang、Zhenhua Gu
DOI:10.1021/ol402210a
日期:2013.9.20
A palladium-catalyzedHeck-type cascade reaction of aryl halides and N-tosyl hydrazones is reported. The neopentylpalladium species, generated from an intramolecular Heck-type insertion reaction of aryl halides, could efficiently react with carbenes to form highly functionalized alkenes. The synthesis of spiro compounds was also explored via a multiple Heck-type insertion reaction with N-tosyl hydrazone