5 or unreproducible yields of 3 and 4 have been obtained by treatment of 1 and 2, respectively, with hot quinoline and copper bronze."'Similarly, hot glycerol resulted in a poor, unreproducible yield of 3 from 1. 5 In contrast to these unproductive results, me found that an excellent, reproducible method for decarboxylation of 1 is to heat its solutions in dimethyl sulfoxide or dimethylformamide. No catalyst is necessary. Heating a solution of 1 in ...
![2-[(3-iodobenzoyl)amino]benzamide Structure](https://image.chemsrc.com/caspic/020/6110-30-1.png)