化学学报 ›› 1995, Vol. 53 ›› Issue (2): 188-192. 上一篇    下一篇

研究论文

过氧化氢水溶液催化氧化环戊烯制备戊二醛机理研究

戴维林;俞宏坤;邓景发;蒋安仁   

  1. 复旦大学化学系
  • 发布日期:1995-02-15

Studies on the mechanism of catalytic oxidation of cyclopentene to prepare glutaraldehyde with aqueous hydrogen peroxide

DAI WEILIN;YU HONGKUN;DENG JINGFA;JIANG ANREN   

  • Published:1995-02-15

在钨酸-叔丁醇体系中,用H~2O~2水溶液氧化环戊烯制备戊而2醛的机理是:环戊烯首先氧化成环戊烯氧化物,然后生成过氧化物中间物,经分离检定,确证为β-羟基过氧化氢,中间物再进行重排,形成戊醛产物,在H~2O~2等量的情况下,重排只能部分进行,加大H~2O~2用量,可以使中间物埃常温下重排接近完全.

关键词: 反应机理, 红外分光光度法, 气相色谱, 质子磁共振谱法, 过氧化氢, 催化氧化, 戊二醛, 环戊烯, 色谱质谱法

The mechanism of catalytic oxidation of cyclopentene with aqueous hydrogen peroxide to prepare glutaraldehyde in a tungstic acid-tert-butanol system is that, first, cyclopentene was oxidized to cyclopentene oxide almost quant.; then the latter was turned into the intermediate b-hydroxycyclopentyl peroxide (I). At room temperature, I can be rearranged almost completely into glutaraldehyde catalyzed by W(VI) in a system containing excessive hydrogen peroxide.

Key words: REACTION MECHANISM, INFRARED SPECTROPHOTOMETRY, GAS CHROMATOGRAPHY, PROTON MAGNETIC RESONANCE SPECTROMETRY, HYDROGEN PEROXIDE, CATALYTIC OXIDATION, PENTANEDIAL, CYCLOPENTENE, CHROMATOGRAPHY-MASS SPECTROGRAPHY

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