Hydrochloric Acid → p-Acetoxybenzoyl chloride

Participants

Reaction Steps

P-acetoxy benzoic acid 180.16 g (1.0 mol) was added to thionylchloride 500 ml, and dimethylformamide (DMF) 1 ml was dropped in as a catalyst and stirred, and when generation of hydrogen chloride and sulfur dioxide stopped and the reaction liquid cleared, p-acetoxy benzoic acid 180.16 g (1.0 mol) was added another 5 times, i.e. a total of 6.0 mol was added. After all 6.0 mol of the p-acetoxy benzoic acid was added and when the generation of hydrogen chloride and sulfur dioxide stopped, and the reaction liquid cleared, it was heated at reflux for 3 hours, then it was distilled and purified (at 173° C., 10 mmHg).

Provenance & Evidence