simple and convenient base-mediated synthesis of asymmetrical carbonates from alcohols with dimethyl carbonate is described. The reaction is remarkably influenced by the strength of the base employed and potassium t-butoxide was found to be best promoter for this reaction. Almost in all cases, the reaction is selective and afforded the corresponding unsymmetrical methyl carbonates in excellent yields
摘要描述了一种简单且方便的碱介导的由醇与
碳酸二甲酯合成不对称
碳酸酯的方法。该反应受到所用碱的强度的显着影响,并且发现
叔丁醇钾是该反应的最佳
促进剂。几乎在所有情况下,反应都是选择性的,并以优异的收率(80-90%)提供了相应的不对称
碳酸甲酯。 图形概要