Photodegradation of pyridylketoximes in methanolic solutions under UV-Vis radiation

被引：4

作者：

Wieszczycka, Karolina ^{[1
]}

Gorzelanczyk, Agata ^{[1
]}

Zembrzuska, Joanna ^{[2
]}

机构：

[1] Poznan Univ Tech, Inst Chem Technol & Engn, PL-60965 Poznan, Poland

[2] Poznan Univ Tech, Inst Chem & Tech Electrochem, PL-60965 Poznan, Poland

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2013年 / 39卷 / 03期

关键词：

Photodegradation; UV-Vis light; Pyridylketoxime; Cu(II); Fe(III); ACIDIC ALCOHOLIC SOLUTIONS; PYRIDINECARBOXYLIC ESTERS; HYDROXYALKYL GROUPS; CHLORIDE SOLUTIONS; IMINOXY RADICALS; OXIMES; ALKYLATION; REDUCTION; COMPLEXES; EPR;

D O I：

10.1007/s11164-012-0599-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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.

引用

页码：853 / 868

页数：16

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