Clickphosphines for transition metal-catalyzed reactions
申请人:Zhang Xumu
公开号:US20070088166A1
公开(公告)日:2007-04-19
Phosphine triazole ligand compounds, prepared through click chemistry, complex with transition metals to form transition metal-phosphine triazole ligand complexes. These complexes are useful catalysts in coupling reactions such as Suzuki-Miyaura coupling, Stille coupling, Negishi coupling, Sonagashira coupling, carbon-heteroatom bond-forming reactions (C—O and C—N), alpha alkylation of carbonyls, Heck coupling reactions, and hydrogenation reactions.
Triazole-Based Monophosphine Ligands for Palladium-Catalyzed Cross-Coupling Reactions of Aryl Chlorides
作者:Qian Dai、Wenzhong Gao、Duan Liu、Lea M. Kapes、Xumu Zhang
DOI:10.1021/jo060321e
日期:2006.5.1
readily available azides and acetylenes. Their palladium complexes provided excellent yields in the amination reactions and Suzuki−Miyaura coupling reactions of unactivated aryl chlorides. Ligand 7i, which has a 2,6-dimethoxybenzene moiety, provided good results in Suzuki−Miyaura reaction to form hindered biaryls. A CAChe model for the Pd/7i complex shows that the likelihood of a Pd−arene interaction