反应详情

35.2 g of 4-phenyl 2-amino thiazole are dissolved in 350 ml of boiling 1-2 dichloroethane. To this solution add 20 g of succinic anhydride. The amide formed crystallizes; keep under reflux for five hours and filter. By recrystallization from alcohol there are recovered 39 g (70%) of the product of the formula ##STR12##