作者:Rebecca A. Green、John F. Hartwig
DOI:10.1021/ol501739g
日期:2014.9.5
We report the palladium-catalyzed coupling of aryl halides with ammonia and gaseous amines as their ammonium salts. The coupling of aryl chlorides and ortho-substituted aryl bromides with ammonium sulfate forms anilines with higher selectivity for the primary arylamine over the diarylamine than couplings with ammonia in dioxane. The resting state for the reactions of aryl chlorides is different from
我们报道了钯催化的芳基卤化物与氨和气态胺作为铵盐的偶联。芳基氯和邻位取代的芳基溴与硫酸铵偶联形成苯胺,与二恶烷中的氨偶联相比,对伯芳胺的选择性高于对二芳胺的选择性。芳基氯反应的静止状态与芳基溴反应的静止状态不同,并且提出这种静止状态的变化是为了解释两种卤代芳烃的反应选择性的差异。