建立一种新的阴极间接电氧化体系 ,以VO(acac) 2 OOH/VO(acac) 2 为氧化还原媒质 ,通过催化阴极由O2 电还原产生的H2 O2 对某些烯酸如顺丁烯二酸、反丁烯二酸和丁烯酸等进行间接环氧化 .研究了 pH值、温度、电流密度等因素对反应的影响 .本文是继前文[1]之后所建立的又一新的氧化还原媒质 .此研究对有机电合成的发展具有重要的理论意义和实际意义 .
We described a novel cathodic indirect epoxidation system in which O 2 was first cathodically reduced to H 2O 2. Then VO(acac) 2 was oxidized by H 2O 2 homogeneously to VO(acac) 2OOH which was used to epoxidize some olefine such as maleic, fumaric and crotonic acids. Many affecting factors on the current efficiency were optimized. The research will contribute to the developments of organic electrosynthesis.
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