Study on Synthesis of Azo-Coupling Products of 3-Aminotropolone |
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| Authors: | Wen Tao GAO Zhuo ZHENG |
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| Affiliation: | Wen Tao GAO1*,Zhuo ZHENG2 1 Department of Chemistry,Jinzhou Teachers College,Jinzhou 121003 2 Dalian Institute of Chemical Physics,Chinese Academy of Science,Dalian 116023 |
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| Abstract: | 3-Acetamidotropolone 1 reacted with p-substitutedbenzenediazonium chloride in pyridine to afford 3-acetamido-5-(4-substitutedphenylazo)tropolones 2a~f. Hydrolysis of compounds 2a~f gave 3-amino-5-(4-substitutedphenylazo)tropolones 3a~f which could not be obtained directly from reactions of 3-aminotropolone with p-substitutedbenzenediazonium chloride. The structures of these new compounds 2a, 2c~f, 3a, 3c~f were confirmed from the elemental analysis and spectral data. |
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| Keywords: | 3-Acetamidotropolone 3-aminotropolone synthesis azo-coupling electrophilic substitution. |
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