| Synthesis, oxygenation and catalytic performance of manganese complex with p-aminomethyl benzoic acid Schiffbase |
| |
| 作者姓名： | 刘丰良 李元建 黄可龙 肖震 |
| |
| 作者单位： | School of Chemistry and Chemical Engineering Central South University，School of Pharmeutical Central South University，School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，Changsha 410083 China，Changsha 410013 China，Changsha 410083 China，Changsha 410083 China |
| |
| 基金项目： | 中南大学校科研和教改项目 |
| |
| 摘 要： | The amino acid Schiff base complex (Sal-AMBA-Mn) was prepared with p-amino-methylbenzoic acid, salicylaldehyde and Mn(OAc)2·4H2O. Its structures was characterized with IR and UV spectra. Oxygenation mechanism of the complex in N, N-dimethylformamide solution was investigated. The results show that lower temperature is in favor of the oxygenation, and energy, enthalpy and entropy are -3.8 kJ/mol, -4.2 J/mol and -161.44 J/(mol·K), respectively. In the presence of the manganese complex, dehydroepiandrosterone acetate is effectively oxidized by molecular oxygen and the corresponding enone 7-ketodehydroepiandrosterone acetate is obtained. The yield is 62.1% when the oxidation is carried out under the reaction conditions of 60 ℃, 2 MPa of O2 pressure, C5H5N as a solvent and molar ratio of the substrate to the complex of 1:10.
|
| 关 键 词： | 氨基酸 锰复合物 氧合作用 催化作用 |
| 收稿时间： | 2 March 2007 |
| 修稿时间： | 2007-03-02 |
Synthesis, oxygenation and catalytic performance of manganese complex with p -aminomethyl benzoic acid Schiff base |
| |
| Liu Feng-liang , Li Yuan-jian , Huang Ke-long and Xiao Zhen.Synthesis, oxygenation and catalytic performance of manganese complex with p-aminomethyl benzoic acid Schiffbase[J].Journal of Central South University of Technology,2007,14(6):793-797. |
| |
| Authors: | Liu Feng-liang Li Yuan-jian Huang Ke-long and Xiao Zhen |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;. School of Pharmeutical, Central South University, Changsha 410013, China |
| |
| Abstract: | The amino acid Schiff base complex (Sal-AMBA-Mn) was prepared with p-amino-methylbenzoic acid, salicylaldehyde and Mn(OAc)2·4H2O. Its structures was characterized with IR and UV spectra. Oxygenation mechanism of the complex in N, N-dimethylformamide
solution was investigated. The results show that lower temperature is in favor of the oxygenation, and energy, enthalpy and
entropy are −3.8 kJ/mol, −4.2 J/mol and −161.44 J/(mol·K), respectively. In the presence of the manganese complex, dehydroepiandrosterone
acetate is effectively oxidized by molecular oxygen and the corresponding enone 7-ketodehydroepiandrosterone acetate is obtained.
The yield is 62.1% when the oxidation is carried out under the reaction conditions of 60 °C, 2 MPa of O2 pressure, C5H5N as a solvent and molar ratio of the substrate to the complex of 1:10.
Foundation item: Project(76132020) supported by the Post-Doctoral Science Fund of Central South University |
| |
| Keywords: | amino acid Schiff base manganese complex oxygenation catalysis dehydroepiandrosterone acetate aerobic oxidation |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
|
