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2-羥基薁-1-羧酸乙酯之電化學氧化反應

陳阿煌、楊錦華、守田忠義

1995化學Chemistry被引 1

摘要

The electrochemical oxidation of ethyl 2-hydrcoxyazulene-1-carboxylate (7) was investigated in a series of different conditions, In the presence of alcoholic solvents such as methanol or ethanol, it was electrolyzed to produce bis(3-ethoxycarbony-Z-hydroxy-1-azulenyl)methane (8a), or bis(3-ethoxycarbony-2-hydroxy-1-azulenyl)ethane (8b), respectively, with the C-insertion of methylene or ethylidene groups and 3.3'-diethoxycarbony-2,2'-dihydroxy-1,1'-biazulenyl (9) via the electrolytic oxidative coupling. But 3,3'-diethoxycarbony-2,2'-dihydroxy-1,1'-biazulenyl (9) was only formed through anodic oxidation without the C-insertion in the non-alcoholic solvents. The possible mechanisms were proposed.

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DOI：https://doi.org/10.6623/chem.1995010