STUDIES IN FUNGITOXICITY .7. FUNGICIDAL ACTIVITY OF CERTAIN ETHYLENES AND HETEROCYCLIC COMPOUNDS SUBSTITUTED WITH 2,4-DINITROPHENYLTHIO- GROUP

被引:4
作者
PIANKA, M
机构
[1] Murphy Chemical Co Ltd., St Albans, Hertfordshire, Weathampsted
关键词
D O I
10.1002/jsfa.2740190906
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Certain ethylenes and heterocyclic compounds substituted with the 2,4‐dinitrophenylthio‐ group were synthesised and tested for activity against Venturia inaequalis, Botrytis cinerea, Fusarium bulbigenum and Cercospora melonis. 1‐Alkylthio‐1‐(2,4‐dinitrophenylthio)‐2‐cyano‐2‐(ethoxycarbonyl or cyano) ethylenes in which the Ph‐S bond is not shielded by the alkyl substituent from attack, perhaps by nucleophilic cell constituents, were found to be active against Venturia. 3,5‐Di(methyl‐ or ethyl‐thio)‐4‐cyanoisothiazoles were also active against Venturia. 2‐Substituted‐5‐(2,4‐dinitrophenylthio)‐1,3,4‐oxadiazoles had no or low fungicidal activity, and of several 2‐(2,4‐dinitrophenylthio) heterocyclic compounds that were tested 2‐(2,4‐dinitrophenylthio)‐benzothiazole and ‐benzoxazole had good activity against Venturia. The infra‐red and proton magnetic resonance spectra of several compounds were examined. Copyright © 1968 John Wiley & Sons, Ltd
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页码:507 / &
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