Electrochemical oxidation of substituted catechols in the presence of pyrazol-5-ones: characterization of products and reaction mechanism |
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| Authors: | Xiao-Guang Gao Zheng-Zheng Zhang Xiu-Qing Song Ru-Gang Zhong |
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| Affiliation: | a College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, Chinab College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | The electrochemical oxidation of substituted catechol derivatives has been investigated in the presence of pyrazol-5-ones as C-H acid nucleophiles by using constant current technique in acetate buffer solution. The results indicate that different reaction mechanisms are involved and not only 1,4-Michael adducts but also 1,6-Michael adducts are formed, depending on the nature of the starting catechols and the nucleophiles, as well as the reaction conditions. |
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| Keywords: | Electrochemical synthesis Catechols Pyrazol-5-ones 1,4-Addition 1,6-Addition |
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