Silicon directed ipso-substitution of polymer bound arylsilanes: Preparation of biaryls via the Suzuki cross-coupling reaction
作者:Yongxin Han、Shawn D Walker、Robert N Young
DOI:10.1016/0040-4039(96)00364-4
日期:1996.4
A method for attaching haloarylsilanes to polymer support was developed. The polymerbound arylhalides were reacted with a variety of ArB(OH)2 under the Suzuki cross-coupling reaction conditions and the coupled resins were cleaved by different electrophiles to give ipso-substitution products in good yields.
Palladium-Catalyzed Synthesis of Functionalized Tetraarylphosphonium Salts
作者:David Marcoux、André B. Charette
DOI:10.1021/jo702355c
日期:2008.1.1
An efficient method to synthesize functionalized tetraarylphosphoniumsalts is described. This palladium-catalyzed coupling reaction between aryl iodides, bromides, or triflates and triphenylphosphine generates phosphonium salts in high yields. The coupling is compatible with a variety of functional groups such as alcohols, ketones, aldehydes, phenols, and amides.