A highly efficient method for the synthesis of N-alkyl isatins starting from N-alkyl 2-bromo or 2-chloro acetanilides is described. The starting materials are easy to prepare and the yields of isatins are generally high. Operationally the reaction is very simple to run. Even though best results were obtained with a catalytic amount of CuI, the reactions of N-alkyl 2-bromo acetanilides actually performed well even in the absence of any metal catalyst.
本文描述了一种从N-烷基2-
溴或
2-氯乙酰苯胺合成N-烷基
靛红的高效方法。起始原料易于制备,
靛红的产率通常较高。在操作上,该反应非常简单易行。尽管使用催化量的CuI可获得最佳结果,但即使在没有任何
金属催化剂的情况下,N-烷基2-
溴乙酰苯胺的反应也能良好进行。