Catalysts for Suzuki−Miyaura Coupling Processes: Scope and Studies of the Effect of Ligand Structure
作者:Timothy E. Barder、Shawn D. Walker、Joseph R. Martinelli、Stephen L. Buchwald
DOI:10.1021/ja042491j
日期:2005.4.1
catalyst levels, to prepare extremely hindered biaryls and to be carried out, in general, for reactions of aryl chlorides at room temperature. Additionally, structural studies of various 1.Pd complexes are presented along with computational data that help elucidate the efficacy that 1 imparts on Suzuki-Miyaura coupling processes. Moreover, a comparison of the reactions with 1 and with 2-(2',4',6'-t
Cycloheptatrienyl Cyclopentadienyl Titanium Phosphane Ligands in Palladium‐Catalyzed Suzuki–Miyaura Cross‐Coupling Reactions
作者:Sabrina Tröndle、Alain C. Tagne Kuate、Matthias Freytag、Peter G. Jones、Matthias Tamm
DOI:10.1002/ejic.201701299
日期:2017.12.22
employed as ancillary phosphaneligands in palladium-catalyzed Suzuki-Miyauracoupling between sterically encumbered aryl bromides and aryl boronic acids. The unusually short reaction times indicated rapid generation of catalytically active Pd(0) species, and the reaction of palladium(II) acetate, Pd(OAc)2, with an excess of of the phosphorus ligands afforded linear diphosphane palladium(0) complexes. These