Disclosed herein is an expedient synthesis of biologically important isoindolinone derivatives from reactions of 2-formylbenzoic acids with various amines. This method operates via a deliberately designed catalyst-free tandem reductive amination/cyclization cascade event triggered by a transfer hydrogenation process with easily available Hantzsch ester as the organic hydride source. The ease of operation, mild reaction conditions, facile accessibility of the starting materials, and easy scalability of the current method distinguish it from the other precedent protocols, thus enable it a practical approach to the syntheses of valuable isoindolinone-incorporated drugs.

本文公开了从2-甲酰基苯甲酸与各种胺的反应中生物学上重要的异吲哚啉酮衍生物的简便合成方法。该方法通过经过精心设计的无催化剂串联氧化还原胺化/环化级联事件进行操作，该事件由转移氢化过程触发，使用容易获得的Hantzsch酯作为有机氢化物源。操作简便，反应条件温和，起始原料易于获得以及现有方法易于扩展，将其与其他先例方案区别开来，因此使其成为一种实用的方法，可用于合成有价值的异吲哚啉酮类药物。