1228009-81-1Relevant articles and documents
Rational exploration of N-Heterocyclic carbene (NHC) palladacycle diversity: A highly active and versatile precatalyst for suzuki-miyaura coupling reactions of deactivated aryl and alkyl substrates
Peh, Guang-Rong,Kantchev, Eric Assen B.,Er, Jun-Cheng,Ying, Jackie Y.
, p. 4010 - 4017 (2010)
As less attention has been focussed on the design of highly efficient palladium precatalysts to ensure the smooth formation of the active catalyst for metal-mediated cross coupling reactions, we herein demonstrate that combining the bulky N-heterocyclic carbene (NHC) 1,3-bis(2,6-diisopropylphenyl)imidazol-2- ylidene (IPr) with cyclopalladated acetanilide as the optimal palladium precatalyst leads to superior catalytic activity compared with the state-of-the-art NHC-Pd catalysts. The complex was discovered through the evaluation of a small, rationally designed library of NHC-palladacycles prepared by a novel, practical and atom-economic method, the direct reaction of IPrHCl with palladacycle acetate dimers.
