Gallic acid was firstly acetylized with acetic anhydride to protect phenolic groups, then reacted with SOCl_2 or PCl_5 to prepare intermediate tricetyl-galloylchloride, in which the yields were 80% and 90% respectively.

• 将没食子酸先用醋酐进行乙酰化保护酚羟基,后与酰氯化剂SOCl2或PCl5反应,制得三乙酰基没食子酰氯,得率分别为80%25和90%25;