INFLUENCE OF THE NUCLEAR SUBSTITUTION ON THE SENSITIZED PHOTOOXIDATION OF MODEL COMPOUNDS FOR PHENOLIC-TYPE PESTICIDES

被引：11

作者：

BOCCO, G

LUIZ, M

GUTIERREZ, MI

GARCIA, NA

机构：

[1] UNIV NACL RIO CUARTO,DEPT QUIM & FIS,RA-5800 RIO CUARTO,ARGENTINA

[2] UNIV NACL PATAGONIA SAN JUAN BOSCO,FAC CIENCIAS NAT,DEPT QUIM,COMODORO RIVADAVI,ARGENTINA

来源：

JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG | 1994年 / 336卷 / 03期

关键词：

D O I：

10.1002/prac.19943360310

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The dye-sensitized (singlet molecular oxygen-mediated photo-oxidation of a series of substituted model compounds for phenolic-type pesticides was studied in several solvents in the alkaline range. From a kinetic point of view, the feasibility to regulate the environmental photo-oxidative degradation by means of the incorporation of electron- withdrawing or electron-releasing substituents in the phenolic nucleous was demonstrated. The photo-oxidability varies from relatively high quantum yields values (0.11 in the most favourable cases for 2,6-dimethyl-4-bromophenol in organic solvent) to non-reactivity (for highly deactivated compounds such as 2,4-dinitrophenol).

引用

页码：243 / 246

页数：4

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