反应详情

A solution of 1.13 g (5.0 mmol) methyl 4-o-tolyl-nicotinoate in 15 ml ethanol and 12 ml 2 N sodium hydroxide solution was heated to reflux for 1 h. The pH was adjusted to 5 and the mixture was extracted twice with ethyl acetate. The combined organic layers were dried (sodium sulfate) and evaporated to give 1 g (94%) of the title compound as off white crystals.

1. temperatureto reflux for 1 h
2. extractionthe mixture was extracted twice with ethyl acetate
3. dry with materialThe combined organic layers were dried (sodium sulfate)
4. customevaporated