Heterogeneous Aromatic Amination of Aryl Halides with Arylamines in Water with PS-PEG Resin-Supported Palladium Complexes
作者:Yoshinori Hirai、Yasuhiro Uozumi
DOI:10.1002/asia.201000192
日期:——
Catalytic aromatic amination is achieved in water under heterogeneous conditions by the use of immobilized palladium complexes coordinated with the amphiphilic polystyrene‐poly(ethylene glycol) resin‐supported di(tert‐butyl)phosphine ligand. Aromatic amination of arylhalides with diphenylamine and N,N‐double arylation of anilines with bromobenzene were found to proceed in water with broad substrate
Clean synthesis of triarylamines: Buchwald–Hartwig reaction in water with amphiphilic resin-supported palladium complexes
作者:Yoshinori Hirai、Yasuhiro Uozumi
DOI:10.1039/b918424d
日期:——
Catalytic aromatic amination was achieved in water under heterogeneous conditions by the use of palladium complexes anchored to the amphiphilic PS-PEG resin with little palladium leaching to provide a green and clean (metal-uncontaminated) protocol for the preparation of triarylamines, including the optoelectronically active N,N,N',N'-tetraaryl-1,1'-biphenyl-4,4'-diamines (TPDs).