申请人:UNILEVER PLC
公开号:EP0522817A1
公开(公告)日:1993-01-13
A process for preparing a dinuclear manganese complex of formula (A)
wherein:-
Mn represents manganese in the III or IV oxidation state, each X is independently a co-ordinating or bridging
species selected from H₂O, O₂⁻, O²⁻, OH⁻, SH⁻, S²⁻, 〉S=O,
Cl⁻, N₃⁻, SCN⁻, N³⁻, RCOO⁻, NH₂⁻ and NR₃ where R is hydrogen, alkyl or aryl (optionally substituted);
L is a ligand which is an organic molecule containing at least three nitrogen atoms which coordinate to a manganese centre; Z represents the charge of the complex and is an integer which may be positive or negative;
Y is a monovalent or multivalent counter-ion leading to charge neutrality, which is dependent upon the charge Z of the complex; and
q = z/[charge Y], the process comprising the steps of:-
(i) reacting an Mn(II) salt with at least an equivalent amount of a compound comprising the ligand L to form said manganese complex characterised in that the reaction is carried out in a non-aqueous solvent; and
(ii) optionally, oxidising the manganese complex formed in step (i) with an oxidising agent.
一种制备式(A)二核锰络合物的工艺
其中
Mn 代表处于 III 或 IV 氧化态的锰,每个 X 都是独立的配位或桥接物种,选自 H₂O
选自 H₂O、O₂-、O²-、OH-、SH-、S²-、〉S=O、
Cl-、N₃-、SCN-、N³-、RCOO-、NH₂- 和 NR₃,其中 R 是氢、烷基或芳基(任选取代);
L 是配体,是至少含有三个氮原子的有机分子,与锰中心配位; Z 代表络合物的电荷,是一个可正可负的整数;
Y 是导致电荷中性的一价或多价反离子,取决于络合物的电荷 Z;以及
q = z/[电荷 Y],该过程包括以下步骤
(i) 将锰(II)盐与至少等量的包含配体 L 的化合物反应,形成所述锰络合物,其特征在于该反应在非水溶剂中进行;以及
(ii) 可选地,用氧化剂氧化步骤(i)中形成的锰络合物。