| 摘要: |
| 通过邻胺基苯酚与二醛或二酮反应制备了4种新型的N,N′,O,O′-Salen配体，再利用配体与Mn(Ac)2·2H2O配位反应合成新型Salen-Mn催化剂C1,C2,C3,C4，用FT-IR,UV-Vis和配位滴定法等方法对催化剂进行了表征；利用高斯03软件（Hartree-Fock/3-21G）对各种配体的结构进行了优化；考察了4种催化剂在环氧化反应中的催化性能.从催化结果可以看出：新型催化剂的催化活性与结构有关，其中新型催化剂C1与传统催化剂C5结构相似，在环氧化反应中都具有良好的催化活性，而新型催化剂C2,C3,C4的催化活性相对弱很多. |
| 关键词: 新型Salen Mn 邻氨基苯酚 二醛 二酮 环氧化反应 |
| DOI： |
| 分类号:0621.25+1 |
| 基金项目:湖南省教育厅资助项目（16C0154）; 湖南省大学生研究性学习和创新性实验计划资助项目(湘教通〔2016〕283号) |
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| Study on the preparation of new-type homogeneous N,N′,O,O′-Salen Mn(III) catalysts and the catalytic performance inepoxidation of olefins |
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Zhou Jianbo, Xiong Donglu, Fu Zaihui, Zou Shuai, Cui Xiaoying, Xu Chao
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Department of Basic Medical Science, Changsha Medical University, Changsha 410219, China
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| Abstract: |
| Four new-type N,N′,O,O′-Salen ligands were synthesized by the condensation of o-aminophenol with dialdehyde or diketone, and new-type Salen-Mn catalysts (C1, C2, C3, C4) were synthesized by ligand coordination reaction with Mn(Ac)2·2H2O. The catalysts were characterized by FT-IR, UV-Vis and coordination titration and the structure of the ligands was optimized by using Hartree-Fork/3-21G. The catalytic performance of the catalysts was investigated by epoxidation. The results indicated that the catalytic activity of the new-type Salen-Mn catalysts is related to the structure, the new-type catalyst C1 and the traditional catalyst C5 have considerable catalytic activity in the epoxidation reactions due to their similar structure, but the catalytic activity of the new-type catalysts C2, C3, C4 is weaker than that of C1 because of the different structure with C1 and C5. |
| Key words: new-type Salen Mn o-aminophenol dialdehyde diketone epoxidation reaction |
