- 作者: ARH-HWANG CHEN
- 中文摘要: 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.
- 英文摘要: --
- 中文關鍵字: azulenes, electrolytic oxidative coupling, electrooxidation
- 英文關鍵字: --