PROCESS FOR PREPARING HERBICIDAL PYRAZOLE DERIVATIVES

Herbicidal compsns. contg. pyrazole derivs. of formula (I) are prepd by reacting a cpd. of formula (II) with a cpd. of HOANR2R3. In the formulas, R1 is methyl, halogen or nitro; n is 2 or 3; R2 is H, C1-4 alkyl or C3-4 alkenyl; R3 is C1-4 alkyl, C3-4 alkenyl or phenyl; A is C1-5 alkylene; Y is halog...

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Bibliographic Details
Main Authors KAWAKUBO KATSUHIKO, YANAI TOSHIAKI, SHINDO MASAHIRO, JOJIMA TERUOMI, HONMA TOYOKUMI
Format Patent
LanguageEnglish
Korean
Published 22.09.1990
Edition5
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES
CHEMISTRY
FISHING
FORESTRY
HETEROCYCLIC COMPOUNDS
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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Summary:Herbicidal compsns. contg. pyrazole derivs. of formula (I) are prepd by reacting a cpd. of formula (II) with a cpd. of HOANR2R3. In the formulas, R1 is methyl, halogen or nitro; n is 2 or 3; R2 is H, C1-4 alkyl or C3-4 alkenyl; R3 is C1-4 alkyl, C3-4 alkenyl or phenyl; A is C1-5 alkylene; Y is halogen. (I) are useful as herbicides against graminaceous, perennial and broad leef weeds.
Bibliography:Application Number: KR19830002278