反应详情

A mixture of 10.0 g (60.17 mmol) of 3-methoxy-4-methylbenzoic acid, 15 ml (210 mmol) of thionyl chloride and 10 ml of toluene was stirred at reflux for 2 hours. The solvents were then evaporated and the residue was distilled bulb-to-bulb at 60°-70° C. at a pressure of 0.04 mm of Hg to give the title compound as a colorless liquid.

1. temperatureat reflux for 2 hours
2. customThe solvents were then evaporated
3. distillationthe residue was distilled bulb-to-bulb at 60°-70° C. at a pressure of 0.04 mm of Hg