aromatic halides, coupling reactions involving oxidative addition of alkyl halides, especially secondary or tertiary halides, to transition metals tend to be more challenging. Herein a palladium-catalyzed intramolecular cyclization of α-bromo-propionanilides has been developed, delivering a series of 3-substituted 2-oxindoles in high yields. The method features easy to prepare starting materials, broad substrate
与芳族卤化物相比,涉及将卤代烷,尤其是仲卤化物或叔卤化物氧化加成到过渡
金属上的偶联反应往往更具挑战性。本文开发了一种
钯催化的 α-
溴代丙酰
苯胺的分子内环化,以高产率提供了一系列 3-取代的 2-羟基
吲哚。该方法具有起始原料容易制备、底物范围广、官能团耐受性好等特点。已经进行了详细的机械研究。