N,N'-双(2'-羟基苯乙酮)缩二胺合锰(Ⅲ)的合成和催化烯烃环氧化研究

Synthesis and catalytic performance in olefin epoxidation of Mn(Ⅲ) complexes with N,N′-bis(2′-hydroxylacetophenone)diamine

本文合成了N,N'-双(2'-羟基苯乙酮)缩乙二胺、N,N'-双(2'-羟基苯乙酮)缩1,2-丙二胺、N,N'-双(2'-羟基苯乙酮)缩1,3-丙二胺和N,N'-双(2'-羟基苯乙酮)缩邻苯二胺四种Schiff配体以及它们的锰(Ⅲ)配合物1,2,3和4。并考察了这四种锰(Ⅲ)配合物作为催化剂,催化以NaOCl为氧源环氧化苯乙烯和环己烯的反应的性能。同时考察了反应温度、助配体、NaOCl的浓度以及pH值对催化环氧化反应的影响。

Four kinds of Schiff bases N, N＇-bis （ 2 ＇-hydroxylacetophenone ） ethylenediamine, N, N＇ -bis （ 2＇-hydroxylacetophenone ） 1, 2-prepylencdiamine, N, N＇-bis （ 2＇-hydroxylacetophenonc ） 1,3-propylenediamine and N, N＇-bis （ 2＇-hydroxylacetophenone ） 1,2-phe- nylenediamine and their Mn（ Ⅲ ）complexes 1,2,3 and 4 were synthesized. The catalytic performance in styrene and cyclohexene epoxidation of these Mn（ Ⅲ） complexes was examined. And the influences of reaction temperature, axial ligands, concentration and pH of NaOCl aqueous solution on olefin epexidation were investigated.