反应详情

78 g of thionyl chloride were added to 50 g of 3,4-dimethylbenzoic acid and the reaction mixture was heated at reflux for 3 hours. The reaction mixture was subsequently concentrated, and the residue was taken up twice in toluene and concentrated again. 53 g of 3,4-dimethylbenzoyl chloride were obtained.

1. temperaturethe reaction mixture was heated
2. temperatureat reflux for 3 hours
3. concentrationThe reaction mixture was subsequently concentrated
4. concentrationconcentrated again