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題 名 | Electrochemical Oxidation of 1,2-Disubstituted Azulenes=1,2-二取代薁類化合物電化學氧化反應之研究 |
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作 者 | 陳阿煌; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:4 1999.07[民88.07] |
頁 次 | 頁437-442 |
分類號 | 346.2 |
關鍵詞 | 化合物; 電化學; 氧化反應; Azulenes; Electrolytic oxidative coupling; Electrooxidation; |
語 文 | 英文(English) |
英文摘要 | 1,2-Disubstituted azulenes: ethyl 2-hydroxy and ethyl 2-acetoxy azulene-l-carboxylates (3 and 4) were electrochemically oxidized in the presence of alcoholic solvents, such as methanol or ethanol, to give bis (3-ethoxycarbonyl- 2-hydroxy-1-azulenyl)methane (5a), or bis (3-ethoxycarbony-2-hydroxy-1- azulenyl)ethane (5b), respectively, and 3,3'-diethoxycarbonyl-2,2'-dihydroxy- 1,1'-biazulenyl (6). The anodic oxidation of 3 in dichloromethane yielded 3,3'- diethoxycarbonyl-2,2'-dihydroxy-1,1'-biazulenyl (6) and ethyl 2-hydroxy-3- chloroazulene-1-carboxylate (7), but only the product 6 formed in other non- alcoholic solvents. The electrolytic oxidative coupling product 6 could be further chemically oxidized to produce the corresponding biazuloquinone. |
本系統中英文摘要資訊取自各篇刊載內容。