The binuclear Mn(II) complexes of calix[4]arene substituted 2-vanillin and 2-hydroxy naphthaldimine, Schiff bases (Mn2L1 and Mn2L2) have been synthesized, characterized and employed as models to mimic monooxygenase in the catalytical oxidation of olefins. The kinetic mathematical model (oxygen rebound mechanism) for olefin cleavage catalyzed by the complexes has been proposed. The results show that, compared to the calix[4]arene-free analogous, the mono and multinuclear complexes of calix[4]arene Schiff bases as catalyst exhibit high activity in the olefin catalytic oxidation. The binuclear Mn(II) complexes of calix[4]arene substituted o-vanillin (R1) and 2-hydroxy naphthaldimine(R2), Schiff bases (Mn2L1 and Mn2L2) have been synthesized, characterized and employed as models to mimic monooxygenase in the catalytical oxidation of olefins. The catalysis is highly selective with high yield of epoxide.
已合成并表征了通过2-
香草醛和2-羟基
萘二
亚胺取代的杯[4]
芳烃的二核Mn(II)配合物,席夫碱(Mn2L1和Mn2
L2),并将其作为模型来模拟单加氧酶在烯烃催化氧化中的作用。提出了配合物催化烯烃裂解的动力学数学模型(氧回弹机制)。结果表明,与无杯[4]
芳烃的类似物相比,杯[4]
芳烃席夫碱的单核和多核配合物作为催化剂在烯烃催化氧化中表现出高活性。已合成并表征了通过
邻香草醛(R1)和2-羟基
萘二
亚胺(R2)取代的杯[4]
芳烃的二核Mn(II)配合物,席夫碱(Mn2L1和Mn2
L2),并将其作为模型来模拟单加氧酶在烯烃催化氧化中的作用。该催化作用具有高度选择性,氧化产物
环氧化物产率高。