Photodegradation of pyridylketoximes in methanolic solutions under UV–Vis radiation

被引：0
作者：
Karolina Wieszczycka
Agata Gorzelańczyk
Joanna Zembrzuska
机构：
[1] Poznan University of Technology,Institute of Chemical Technology and Engineering
[2] Poznan University of Technology,Institute of Chemistry and Technical Electrochemistry
来源：
Research on Chemical Intermediates | 2013年 / 39卷
关键词：
Photodegradation; UV–Vis light; Pyridylketoxime; Cu(II); Fe(III);
D O I：
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中图分类号：
学科分类号：
摘要：
Photodegradation of the oximes of alkyl-2-, -3-, and -4-pyridylketones and identification of possible degradation products using LC–MS/MS and GC–MS techniques were performed. The influence of copper(II) and iron(III) ions on the stability of the oxime under UV–Vis radiation exposure were also studied. It was found that the photodegradation of the pyridylketoximes resulted in the photoisomerization, photofragmentation and photosubstitution to a pyridine ring. Based on these results, a hypothetical mechanism of photodegradation of pyridylketoximes was proposed.
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页码：853 / 868
页数：15
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