反应详情

A mixture of 4-(3-dibutylaminopropoxy)benzoic acid hydrochloride [19a] (3.44 g, 10.0 mmol), thionyl chloride (5.87 g, 3.6 mL, 49.4 mmol) and dichloromethane (10 mL) was stirred under reflux conditions for 1 hour and evaporated under reduced pressure at 60-70° C. (water bath) to give 3.62 g (100% yield) of 4-(3-dibutylaminopropoxy)benzoyl chloride hydrochloride [15].

1. customevaporated under reduced pressure at 60-70° C. (water bath)