Pyrazole derivatives as herbicides

Details Pyrazole derivatives as herbicides Pyrazole derivatives as herbicides

1997-01-06

2000-07-04

Ramsuer, Robert W.

Plant protecting and regulating compositions

Plant growth regulating compositions

Organic active compound containing

5483657, 5483751, A01N 4356, C07D23116, C07D40510

Patent

active

060838817

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to novel herbicidally active pyrazole derivatives, processes for their preparation, compositions which comprise these compounds and their use for control of weeds, in particular in crops of useful plants, or for inhibiting plant growth.
Pyrazole compounds having a herbicidal action are known and are described, for example, in JP-A-03 093 774, JP-A-02 300 173 and JP-A-03 163 063.
Novel pyrazole derivatives having herbicidal and growth-inhibiting properties have now been found.
The present invention thus relates to compounds of the formula I ##STR2## in which R.sub.100 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.4 -C.sub.8 cycloalkenyl, C.sub.4 -C.sub.8 cycloalkenyl-C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkynyl, phenyl, phenyl-C.sub.1 -C.sub.6 alkyl or cyano, where the groups listed for R.sub.100, with the exception of hydrogen and cyano, can be substituted by halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 halogenoalkyl, cyano, nitro, --COR.sub.3, --X.sub.3 R.sub.04, --COR.sub.8, --NR.sub.56 R.sub.57 or --NR.sub.56 OR.sub.57, in which R.sub.56 and R.sub.57 independently of one another are hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 halogenoalkyl, C.sub.3 -C.sub.8 alkenyl, C.sub.3 -C.sub.8 halogenoalkenyl, C.sub.3 -C.sub.8 alkynyl, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.8 alkyl, cyano-C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxycarbonyl-C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.3 -C.sub.7 cycloalkyl-C.sub.1 -C.sub.4 alkyl, benzyl, C.sub.1 -C.sub.4 alkyl which is substituted by -N-morpholino, -N-thiomorpholino or -N-piperazino, di-C.sub.1 -C.sub.4 alkylamino-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylamino-carbonyl-C.sub.1 -C.sub.4 alkyl, di-C.sub.1 -C.sub.4 alkylaminocarbonyl-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxycarbonyl or C.sub.1 -C.sub.4 alkylcarbonyl; or heterocyclic ring; R.sub.3 is halogen, --X.sub.4 --R.sub.5, amino, C.sub.1 -C.sub.4 alkylamino, di-C.sub.1 -C.sub.4 alkylamino, C.sub.2 -C.sub.4 -halogenoalkylamino, di-C.sub.2 -C.sub.4 halogenoalkylamino, C.sub.1 -C.sub.4 alkoxy-C.sub.2 -C.sub.4 alkylamino, di-C.sub.1 -C.sub.4 alkoxy-C.sub.2 -C.sub.4 alkylamino, C.sub.3 - or C.sub.4 alkenylamino, diallylamino, -N-pyrrolidino, -N-piperidino, -N-morpholino, -N-thiomorpholino, -N-piperazino or --O--N.dbd.C(CH.sub.3)--CH.sub.3 ; in which alkoxy-C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.8 halogenoalkyl, C.sub.1 -C.sub.8 -alkylthio-C.sub.1 -C.sub.4 alkyl, di-C.sub.1 -C.sub.4 alkylamino-C.sub.1 -C.sub.4 alkyl, cyano-C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 alkenyl, C.sub.3 -C.sub.8 halogenoalkenyl, C.sub.3 -C.sub.8 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, oxetan-3-yl, C.sub.3 -C.sub.7 -cycloalkyl-C.sub.1 -C.sub.4 alkyl, halogeno-C.sub.3 -C.sub.7 cycloalkyl or benzyl, which is unsubstituted or substituted on the phenyl ring up to three times in an identical or different manner by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 halogenoalkyl, C.sub.1 -C.sub.4 halogenoalkoxy or C.sub.1 -C.sub.4 alkoxy; alkali metal, alkaline earth metal or ammonium ions; or C.sub.1 -C.sub.6 alkyl-COOR.sub.7, in which C.sub.3 -C.sub.8 alkynyl, C.sub.1 -C.sub.8 alkoxy-C.sub.2 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkylthio-C.sub.1 -C.sub.8 alkyl or C.sub.3 -C.sub.7 cycloalkyl; C.sub.2 -C.sub.7 alkoxycarbonyl or oxetan-3-yl; ##STR3## -nitro, --NH--CHO or --NC, in which X.sub.9 is oxygen or sulfur; ; alkoxy-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio-C.sub.1 -C.sub.4 alkyl, di-C.sub.1 -C.sub.4 alkylamino-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.8 halogenoalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 halogenoalkenyl, C.sub.3 -C.sub.8 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, oxetan-3-yl, halogeno-C.sub.3 -C.sub.7 -cycloalkyl, C.sub.1 -C.sub.8 alkylcarbonyl, allylcarbonyl, C.sub.3 -C.sub.7 cycloalkylcarbonyl, benzoyl, which is unsubstituted or substituted on the phenyl ring up to three times in an identical or different manner by halogen, C.sub.1 -C.sub.4 alkyl,

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