A RhI-catalyzed cross-coupling of diazoester with arylstannane was developed. This reaction represents the first Stille-type coupling that uses a diazo compound as the coupling partner. The reaction is operationally simple and can be carried out under mild conditions, thus providing an alternative approach for the synthesis of α-aryl esters. RhI–carbene migratory insertion process is suggested to be involved as the key step in this Stille-type coupling.
研究人员开发了一种 RhI 催化的重氮酯与芳基
锡烷的交叉偶联反应。该反应是首个使用重氮化合物作为
偶联剂的 Stille 型偶联反应。该反应操作简单,可在温和的条件下进行,从而为 α 芳基酯的合成提供了另一种方法。据推测,RhI-羰基迁移插入过程是这一斯蒂尔型偶联反应的关键步骤。