反应详情

An amount of 572mg of 2-methoxy-9-carboxy-10,11-dihydrodibenzo[b,f]thiepin was dissolved in 10ml of anhydrous benzene and to the mixture was added 1ml of thionyl chloride. The resulting mixture was refluxed for 3 hours and freed of solent under reduced pressure to obtain 614mg of 2-methoxy-10,11-dihydrodibenzo[b,f]thiepin-9-carbonyl chloride.

1. temperatureThe resulting mixture was refluxed for 3 hours