INSECTICIDES

Synthetic pyrethroid insecticides, having no methyl substituent in the 3 position on the cyclopentenone ring, and of formula WHERE X1 is halogen, alkyl, alkenyl or aryl, X2, X3 and X4 are hydrogen, halogen or alkyl, R1 and R2 and hydrogen or alkyl and R3 is a group having carbon-carbon unsaturation...

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Bibliographische Detailangaben
Hauptverfasser:	M. ELLIOTT, N.F. JANES
Format:	Patent
Sprache:	fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY FISHING FORESTRY HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	Synthetic pyrethroid insecticides, having no methyl substituent in the 3 position on the cyclopentenone ring, and of formula WHERE X1 is halogen, alkyl, alkenyl or aryl, X2, X3 and X4 are hydrogen, halogen or alkyl, R1 and R2 and hydrogen or alkyl and R3 is a group having carbon-carbon unsaturation alpha to the CH2 group to which R3 is bonded, e.g., R3 = phenyl, are prepared by esterification.