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Chin. J. Org. Chem. ›› 2008, Vol. 28 ›› Issue (05): 804-809. Previous Articles Next Articles
Original Articles
柳英姿,张爱健,王欢,张丽,陆嘉星*
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LIU Ying-Zi,ZHANG Ai-Jian,WANG Huan,ZHANG Li,LU Jia-Xing*
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Electrosynthesis of 1,5-diaminonaphthalene from 1,5-dinitronaphthalene was studied. At room temperature, the electrochemical reduction behavior of 1,5-dinitronaphathlene has been studied on a Cu electrode by cycle voltammertry in DMF-water solution. It was an irreversible reaction controlled by diffusion. 1,5-Dinitronaphthalene exhibited two successive waves in the DMF-water solution which were corresponding to the two nitro-group electroreduction. The transfer coefficients of the reaction were calcu-lated. The values of α1 and α2 were between 0.275~0.335 and 0.360~0.437, respectively. Influence of electrolysis potential (E), the concentration of 1,5-dinitronaphthalene (c1), the concentration of sulfuric acid (c2), the passed charge (Q) and volume ratio of solvent to water (Y) was investigated to opti-mize the electrolytic conditions, with the maximal yield to be 77%.
Key words: 1,5-dinitronaphthalene, 1,5-diaminonaphthalene, constant-potential elec-trolysis, electrochemical reduction
LIU Ying-Zi,ZHANG Ai-Jian,WANG Huan,ZHANG Li,LU Jia-Xing*. Synthesis of 1,5-Diaminonaphthalene by Electrochemical Reduction[J]. Chin. J. Org. Chem., 2008, 28(05): 804-809.
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