| Reductive demetalation of manganese corroles： The substituent effect |
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| 作者姓名： | Hai Yang Liu Ling Chen Fei Yam Hai Ying Zhan Xiao Ying Xiang Li Wang Huan Feng Jiang Chi Kwong Chang |
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| 作者单位： | a Department of Chemistry, South China. University of Technology, Guangzhou 510641, China;b Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China;c Department of Applied Physics, South China. University of Technology, Guangzhou 510641, China |
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| 基金项目： | 国家自然科学基金，香港研究资助局资助项目 |
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| 摘 要： | The reductive demetalation of manganese corroles was investigated in CH2Cl2/HCl （aqueous） solvent by using SnCl2 as reducing agent. It was found that the demetalation yields depend on the substituents of corrole macrocycle significantly. Electron- rich manganese corrole undergoes reductive demetalation more easily than electron-deficient ones. The isolated reductive demetalation yield of manganese 5,10,15-tris（phenyl）corrole in present system is moderate （46%）. As for electron-deficient Mn（Ⅲ） 5,10,15-tris（pentafluorophenyl）corrole, the acid-induced demetalation in HOAc-HESO4 （V/V = 3：1） is preferable with an isolated yield of 67%.
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| 关 键 词： | 还原剂 锰元素 取代基 化学 |
Reductive demetalation of manganese corroles: The substituent effect |
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| Hai Yang Liu,Ling Chen,Fei Yam,Hai Ying Zhan,Xiao Ying,Xiang Li Wang,Huan Feng Jiang,Chi Kwong Chang.Reductive demetalation of manganese corroles: The substituent effect[J].Chinese Chemical Letters,2008,19(8):1000-1003. |
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| Authors: | Hai Yang Liu Ling Chen Fei Yam Hai Ying Zhan Xiao Ying Xiang Li Wang Huan Feng Jiang Chi Kwong Chang |
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| Institution: | a Department of Chemistry, South China. University of Technology, Guangzhou 510641, China;b Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China;c Department of Applied Physics, South China. University of Technology, Guangzhou 510641, China |
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| Abstract: | The roducfive demetalafion of manganese corroles was investigated in CH2Cl2/HCl (aqueous) solvent by using SnCl2 as reducing agent. It was found that the demetalation yields depend on the substituents of corrole macrocycle significantly. Electronrich manganese corrole undergoes reductive demetalation more easily than electron-deficient ones. The isolated reductive demetalation yield of manganese 5,10,15-tris(phenyl)corrole in present system is moderate (46%). As for electron-deficient Mn(III) 5,10,15-tris(pentafluorophenyl)corrole, the acid-induced demetalation in HOAc-H2SO4 (V/V = 3:1) is preferable with an isolated yield of 67%. |
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| Keywords: | Corrole Manganese Demetalation |
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