The invention relates to a process for the manufacture of an epoxyethyl carboxylate or glycidyl carboxylate, including reacting a vinyl carboxylate or an allyl carboxylate using an oxidant and a water-soluble manganese complex in an aqueous reaction medium, and the water-soluble manganese complex comprises an oxidation catalyst, characterized in that the water-soluble manganese complex is a mononuclear species of the general formula (I): [LMnX3]Y, or a binuclear species of the general formula (II): [LMn(μ-X)3MnL]Yn, wherein Mn is a manganese; L is a ligand and each L is independently a polydentate ligand, each X is independently a coordinating species and each μ-X is independently a bridging coordinating species, Y is a non-coordinating counter ion, and wherein the epoxidation is carried out at a pH in the range of from 1.0 to 7.0.
本发明涉及一种生产环氧乙基
羧酸酯或环氧丙基
羧酸酯的方法,包括在
水相反应介质中使用氧化剂和
水溶性
锰配合物反应
乙烯基羧酸酯或烯丙基
羧酸酯,其中
水溶性
锰配合物包括氧化催化剂,其特征在于所述
水溶性
锰配合物是通式(I)的单核物种:[LMnX3]Y,或通式(II)的双核物种:[LMn(μ-X)3MnL]Yn,其中Mn是
锰,L是
配体,每个L独立地是多齿
配体,每个X独立地是配位物种,每个μ-X独立地是桥联配位物种,Y是非配位的反离子,环氧化反应在pH为1.0至7.0的范围内进行。