Expanded scope of heterocyclic biaryl synthesis via a palladium-catalysed thermal decarboxylative cross-coupling reaction
作者:Marie Kissane、Orla A. McNamara、David Mitchell、David M. Coppert、Humphrey A. Moynihan、Kurt T. Lorenz、Anita R. Maguire
DOI:10.1016/j.tetlet.2011.11.051
日期:2012.1
The palladium-catalysed decarboxylative cross-coupling of heterocyclic aromatic carboxylates and aryl halides is described. The cross-coupling proceeds under relatively mild conditions using catalytic Pd(0) and tetrabutylammonium bromide (TBAB). Utilizing a mixed solvent system consisting of N,N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP), the cross-coupling system operated at temperatures
描述了钯催化的杂环芳族羧酸盐和芳基卤化物的脱羧交叉偶联。使用催化性Pd(0)和四丁基溴化铵(TBAB)在相对温和的条件下进行交叉偶联。利用由N,N-二甲基甲酰胺(DMF)和N-甲基-2-吡咯烷酮(NMP)组成的混合溶剂系统,交叉偶联系统在80至140°C的温度范围内运行。