6H-Dibenzo[d,f-[1,3]diazepin-6-ylidene,5,7-dihydro-5,7-diphenylphosphanyl]: A new ligand for palladium-catalyzed Mizoroki–Heck coupling
作者:Zhi-jie Jiang、Wei Wang、Rong Zhou、Lei Zhang、Hai-yan Fu、Xue-li Zheng、Hua Chen、Rui-xiang Li
DOI:10.1016/j.catcom.2014.07.031
日期:2014.12
A novel and conveniently prepared diphosphine ligand 6H-Dibenzo[d,f-[1,3]diazepin-6-ylidene,5,7-dihydro-5,7-diphenylphosphanyl] (DADPP) combined with [Pd(C3H5)Cl](2) affords an efficient catalytic system for Mizoroki-Heck cross-coupling of aryl halides with alkenes. The system could give the yield of 95% for 4-chloronitrobenzene with 0.05 mol.% [Pd(C3H5)Cl](2). For the bromide-substituted substrates, the highest turnover number (TON) is up to 96,000,000. (C) 2014 Published by Elsevier B.V.