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6H-Dibenzo[d,f-[1,3]diazepin-6-ylidene,5,7-dihydro-5,7-diphenylphosphanyl]: A new ligand for palladium-catalyzed Mizoroki–Heck coupling

Authors
Journal
Catalysis Communications
1566-7367
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.catcom.2014.07.031
Keywords
  • Mizoroki–Heck Coupling
  • Palladium
  • Phosphine
  • Aryl Halide

Abstract

Abstract 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 0.05mol.% [Pd(C3H5)Cl]2. For the bromide-substituted substrates, the highest turnover number (TON) is up to 96,000,000.

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