Palladium catalysed aryl amination reactions in supercritical carbon dioxide
作者:Catherine J. Smith、Melanie W. S. Tsang、Andrew B. Holmes、Rick L. Danheiser、Jefferson W. Tester
DOI:10.1039/b509345g
日期:——
Palladiumcatalysed C-N bond formation in supercritical carbondioxide has been accomplished. Carbamic acid formation is avoided in part through the use of an N-silylamine as the coupling partner. Employing a catalyst system of Pd2dba3(1 mol%) and 2-dicyclohexylphosphino-2',4',6'-triisopropyl-1,1'-biphenyl (X-Phos)(2 mol%) enabled the catalytic amination of aryl bromides and chlorides with N-silylanilines