反应详情

A mixture of 2-(2-chloro-4-trifluoromethylphenylamino)-3-methylbutyramide (1 mmol) and 4 ml of methanol, saturated with HCl gas, is heated at 75° for about 40 hours. The mixture is cooled, poured into saturated aqueous sodium bicarbonate and extracted with ether. The combined ether extracts are dried over sodium sulfate and solvent removed in vacuo to yield methyl 2-(2-chloro-4-trifluoromethylphenylamino)-3-methylbutanoate, which can be further purified by prep. thin layer chromatography.

1. temperatureThe mixture is cooled
2. extractionextracted with ether
3. dry with materialThe combined ether extracts are dried over sodium sulfate and solvent
4. customremoved in vacuo