[PdA (IPr*) (cinnamyl)Cl]: An efficient pre-catalyst for the preparation of tetra-ortho-substituted biaryls by Suzuki-Miyaura cross-coupling
Slawin, Alexandra M. Z.
Cazin, Catherine S. J.
Nolan, Steven P.
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
KAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Permanent link to this recordhttp://hdl.handle.net/10754/562127
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AbstractThe bigger the better: The new well-defined [Pd(IPr*)(cin)Cl] pre-catalyst is described (see scheme). This complex proves to be highly active in the Suzuki-Miyaura cross-coupling for the synthesis of tetra-ortho- substituted biaryls under mild conditions. IPr* is reported as the largest N-heterocyclic carbene (NHC) to date for [Pd(NHC)(cin)Cl] complexes, explaining the high reactivity observed for this complex in this challenging transformation. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
SponsorsWe gratefully acknowledge the EC for funding through the seventh framework programme SYNFLOW. We thank the EPSCR National Mass Spectrometry Service Center in Swansea for mass spectrometric analyses. Umicore AG is thanked for its generous gifts of materials. S.P.N. is a Royal Society Wolfson Research Merit Award holder. C.S.J.C. acknowledges the Royal Society for a University Research Fellowship.
JournalChemistry - A European Journal