高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 478.

• Synthetic Sciences • 上一篇    下一篇

Study on Oxidation of A Mimic Enzyme[Mn2IV(μ-O)3(Me3TACN)2](PF6)2·H2O Complex

WEI Xiao-Mei1, GAO Li-Ming2, CHENG Dong-Liang1, SHEN Zheng-Wu3   

  1. 1. Department of Chemistry, Lanzhou University, Lanzhou 730000;
    2. Department of Chemistry, Northwest Normal University, Lanzhou 730070)Shanghai;
    3. Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032
  • 出版日期:2000-12-31 发布日期:2000-12-31

Study on Oxidation of A Mimic Enzyme[Mn2IV(μ-O)3(Me3TACN)2](PF6)2·H2O Complex

WEI Xiao-Mei1, GAO Li-Ming2, CHENG Dong-Liang1, SHEN Zheng-Wu3   

  1. 1. Department of Chemistry, Lanzhou University, Lanzhou 730000;
    2. Department of Chemistry, Northwest Normal University, Lanzhou 730070)Shanghai;
    3. Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032
  • Online:2000-12-31 Published:2000-12-31

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摘要：

It is well established that mangamese is an essential trace element in biology. The oxidation of water by photosynthetic enzymes (photosystem Ⅱ; PS Ⅱ), the reduction of ribonucleotides in certain bacteria, and the disproportionation of hydrogen peroxide by some catalases or pseudocatalases have been shown to occur at bi-or polynuclear manganese containing active sites[1]. Manganese complexes derived from 1,4,7-trimethyl-1,4,7-triazacyclononane and related ligand systems act as highly effective catalysts for the bleaching of stains by hydrogen peroxide at low temperatures. These complexes also catalyze the epoxidation of alkenes and the oxidation of polyphenolic substrates by hydrogen peroxide[2]. So far, the paper for the oxidation of[Mn2IV (μ-O)3(Me3TACN)2](PF6)2&#H20 83;(Mn2IV-cat) is little. In our work, We use various alkene, pregnenolone, aromatic aldehydes and toluene series as substrates, Mn2IV-cat. catalyze the epoxidation of alkenes; the epoxidation and the oxidation of allylic position of pregnenolone; the oxidation of aromatic aldehydes and toluene series respectively (see the following table).

Abstract:

It is well established that mangamese is an essential trace element in biology. The oxidation of water by photosynthetic enzymes (photosystem Ⅱ; PS Ⅱ), the reduction of ribonucleotides in certain bacteria, and the disproportionation of hydrogen peroxide by some catalases or pseudocatalases have been shown to occur at bi-or polynuclear manganese containing active sites[1]. Manganese complexes derived from 1,4,7-trimethyl-1,4,7-triazacyclononane and related ligand systems act as highly effective catalysts for the bleaching of stains by hydrogen peroxide at low temperatures. These complexes also catalyze the epoxidation of alkenes and the oxidation of polyphenolic substrates by hydrogen peroxide[2]. So far, the paper for the oxidation of[Mn2IV (μ-O)3(Me3TACN)2](PF6)2&#H20 83;(Mn2IV-cat) is little. In our work, We use various alkene, pregnenolone, aromatic aldehydes and toluene series as substrates, Mn2IV-cat. catalyze the epoxidation of alkenes; the epoxidation and the oxidation of allylic position of pregnenolone; the oxidation of aromatic aldehydes and toluene series respectively (see the following table).

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