An Extremely Active Catalyst for the Negishi Cross-Coupling Reaction
作者:Jacqueline E. Milne、Stephen L. Buchwald
DOI:10.1021/ja0474493
日期:2004.10.1
A new catalyst system for the Pd-catalyzed cross-coupling of organozinc reagents with aryl halides (Negishi coupling) has been developed. This system permits efficient preparation of hindered biaryls (tri- and tetra-ortho-substituted), functions effectively at low levels of catalyst, and tolerates a wide range of functional groups and heterocyclic substrates. A systematic study of ligand structure
Synthesis of 1,5-disubstituted tetrazoles via Suzuki–Miyaura cross-coupling of 5-chloro-1-phenyltetrazole
作者:Qing Tang、Ryan Gianatassio
DOI:10.1016/j.tetlet.2010.04.091
日期:2010.7
Suzuki–Miyaura coupling reactions of 5-chloro-1-phenyl-tetrazole with various functionalized arylboronic acids were investigated. In the presence of catalytic amounts of SPhos/Pd(OAc)2 or RuPhos/Pd(OAc)2, the reaction proceeded smoothly to afford 1,5-diaryltetrazoles in good to excellent yields.