Suzuki−Miyaura Coupling of Aryl Tosylates Catalyzed by an Array of Indolyl Phosphine−Palladium Catalysts
摘要:
A family of indolyl phosphine ligands was applied to Suzuki-Miyaura cross-coupling of aryl tosylates. Catalyst loading can be reduced to 0.2 mol % for coupling of nonactivated aryl tosylate. A challenging example for room temperature coupling is realized. The scope of this highly active Pd/L2 system can be extended to other boron nucleophiles, including trifluoroborate salts and boronate esters. The ligand structural comparisons toward the reactivity in tosylate couplings are also described.
Base effect on the cross-coupling of bulky arylboronic acid with halopyridines
作者:Huichang Zhang、Kin Shing Chan
DOI:10.1016/0040-4039(95)02343-7
日期:1996.2
Base has been shown to have a remarkable effect on acceleration of the rate of Suzuki coupling of sterically bulky boronic acid with halopyridines in non-aqueous solvent.
Strong base and large size cation have been shown to accelerate the rate and the yield of Suzuki coupling of a sterically bulky boronic acid with halopyridines in DME for the synthesis of pyridylphenols.
Palladium-catalyzed Buchwald-Hartwig Amination and Suzuki-Miyaura Cross-coupling Reaction of Aryl Mesylates
作者:Shun Wong
DOI:10.15227/orgsyn.092.0195
日期:——
Enantioselectivity Increases with Reactivity: Electronically Controlled Asymmetric Addition of Diethylzinc to Aromatic Aldehydes Catalyzed by a Chiral Pyridylphenol
作者:Huichang Zhang、Feng Xue、T. C. W. Mak、Kin Shing Chan
DOI:10.1021/jo9609889
日期:1996.11.15
A General Palladium-Catalyzed Suzuki-Miyaura Coupling of Aryl Mesylates