申请人:Momentive Specialty Chemicals Research
Belgium S.A.
公开号:EP2357180A1
公开(公告)日:2011-08-17
The invention relates to a process for the manufacture of an epoxyethyl ether or glycidyl ether by catalytic oxidation of a vinyl or allyl ether using an oxidant, preferably hydrogen peroxide, and a manganese complex wherein the catalytic oxidation is performed in an aqueous reaction medium, comprising water with less than 10% by volume of cosolvents, wherein a water-soluble manganese complex is used as oxidation catalyst,
characterized in that the water-soluble manganese complex is a mononuclear species of the general formula (I):
[LMnX3]Y (I)
or a binuclear species of the general formula (II):
[LMn(µ-X)3MnL]Y2 (II)
wherein Mn is a manganese; L or each L independently is a polydentate ligand, each X independently is a coordinating species and each µ-X independently is a bridging coordinating species, whereas Y is an oxidatively-stable counter ion, and wherein the epoxidation is carried out at a pH in the range of from 1.0 to 6.0.
This invention also relates to epoxyethyl ethers.
本发明涉及一种通过使用氧化剂(最好是过氧化氢)和锰络合物对乙烯基醚或烯丙基醚进行催化氧化来制造环氧乙基醚或缩水甘油醚的工艺,其中催化氧化是在水性反应介质中进行的,该介质包括水和少于10%体积的共溶剂,其中水溶性锰络合物被用作氧化催化剂、
其特征在于,水溶性锰络合物是通式(I)的单核物质:
[LMnX3]Y (I)
或通式(II)的双核物质:
[LMn(µ-X)3MnL]Y2 (II)
其中 Mn 是锰;L 或每个 L 独立地是多齿配位体,每个 X 独立地是配位体,每个 µ-X 独立地是桥接配位体,而 Y 是氧化性稳定的反离子,其中环氧化是在 pH 值为 1.0 至 6.0 的范围内进行的。
本发明还涉及环氧乙基醚。