A manganese oxidation catalyst, a method for its preparation and use thereof for catalytic epoxidation, catalytic cis-dihydroxylation and combined expoxidation-cis-dihydroxylation of olefins
申请人:K.U. Leuven Research & Development
公开号:EP0970951A1
公开(公告)日:2000-01-12
The invention relates to a novel manganese oxidation catalyst of the general formula:
(LMnXn)S wherein:
Mn is manganese;
L is a triazacycloalkane, the carbon skeleton thereof comprising at least 6 C atoms; substituted on two of the three N atoms by a non coordinating substituent, and comprising a covalent link to a support S;
X is a charge compensating anion selected from the group comprising: Cl-, Br-, F-, I-, CN-, NCS-, N3-, ClO4-, NO3-, RCOO-, RO-, OH-, O22-, O2-, OOH-, SO42-, HSO4-, PO43-, HPO42-, H2PO4-, RSO3-, RSO4-, B4O72-, oxalate, fumarate, maleate, PF6-, BF4-;
n has any value between 0 and 4;
S is a solid support material, that is linked to L via a covalent tether, the support material being selected from the following groups: oxides, mixed oxides, zeolites, clays, soluble or insoluble organic polymers, or mixed organic-inorganic solids and to a method for its preparation and further to a method for epoxidation and/or dishydroxylation of olefins in the presence of such a catalyst.
本发明涉及一种通式如下的新型锰氧化催化剂:
(LMnXn)S 其中:
Mn是锰;
L 是三氮杂环烷烃,其碳骨架由至少 6 个 C 原子组成;三个 N 原子中的两个被非配位取代基取代,并包括与载体 S 的共价连接;
X 是电荷补偿阴离子,选自以下组别Cl-、Br-、F-、I-、CN-、NCS-、N3-、ClO4-、NO3-、RCOO-、RO-、OH-、O22-、O2-、OOH-、SO42-、HSO4-、PO43-、HPO42-、H2PO4-、RSO3-、RSO4-、B4O72-、草酸盐、富马酸盐、马来酸盐、PF6-、BF4-;
n 的值在 0 和 4 之间;
S 是固体支撑材料,通过共价键与 L 连接,该支撑材料选自以下组别:氧化物、混合氧化物、沸石、粘土、可溶或不溶有机聚合物或有机-无机混合固体,以及其制备方法和在该催化剂存在下进行烯烃环氧化和/或二羟基化的方法。