Cobalt(II) chloride hexahydrate (CoCl2·6H2O) efficiently catalyzes the acetylation of alcohols with AcOH in high yields. This protocol is also effective with other carboxylic acids, trifluoroacetic acid, propanoic acid, phenylacetic acid and benzoic acid, affording the corresponding acylated products in moderate to good yields. Removal of water is not necessary in these reactions. The catalyst can
六
水合
氯化钴(II)(CoCl 2 ·6H 2 O)以高收率有效催化醇与AcOH的乙酰化。该方案对其他
羧酸,
三氟乙酸,
丙酸,
苯乙酸和
苯甲酸也有效,以中等至良好的收率提供相应的酰化产物。在这些反应中不需要除
水。催化剂可以过滤和再循环而不损失活性。