Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing
Patent
1997-07-03
1998-05-05
Lambkin, Deborah
Plant protecting and regulating compositions
Plant growth regulating compositions
Organic active compound containing
504254, 504255, 504260, 504251, 5462844, 546286, 546291, 546304, 546314, 546316, 546318, 546339, 546341, 546342, A01N 4340, C07D21389
Patent
active
057474222
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to novel substituted 2-phenylpyridines of the formula I ##STR2## where the variables have the following meanings:
n is 0 or 1;
R.sup.1, R.sup.3 and R.sup.4 independently of one another are hydroxyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, nitro, amino, C.sub.1 -C.sub.4 -alkyl-amino, di-(C.sub.1 -C.sub.4 -alkyl)-amino, mercapto, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, cyano, carboxyl, aminocarbonyl, (C.sub.1 -C.sub.4 -alkylamino)carbonyl or di-(C.sub.1 -C.sub.4 -alkyl)-aminocarbonyl;
R.sup.2 is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, cyano, nitro, amino, hydroxyl, C.sub.1 -C.sub.4 -haloalkoxy, mercapto, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, C.sub.1 -C.sub.4 -alkylsulfinyl, C.sub.1 -C.sub.4 -haloalkylsulfinyl, C.sub.1 -C.sub.4 -alkylsulfonyl or C.sub.1 -C.sub.4 -halo-alkylsulfonyl;
R.sup.5 is hydrogen, halogen or cyano;
R.sup.6 and R.sup.8 independently of one another are hydrogen or halogen;
R.sup.7 is hydrogen, cyano, nitro, hydroxyl, trifluoromethylsulfonyloxy, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -haloalkoxy;
X is oxygen or sulfur,
R.sup.9 and R.sup.10 independently of one another are hydrogen or C.sub.1 -C.sub.4 -alkyl;
m is 1, 2, 3 or 4;
R.sup.11 is C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, Cl-C.sub.4 -haloalkyl having one to five halogen atoms, C.sub.2 -C.sub.4 -alkenyl, C.sub.2 -C.sub.4 -haloalkenyl having one to three halogen atoms, (C.sub.1 -C.sub.4 -alkoxy)carbonyl, (C.sub.1 -C.sub.4 -alkoxy)carbonyl-(C.sub.1 -C.sub.4 -alkyl), unsubstituted or mono- to trisubstituted phenyl, unsubstituted or mono- or disubstituted thienyl, furanyl, tetrahydrofuranyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, pyridyl or pyrimidyl, where the substituents selected in each case are from the group consisting of nitro, cyano, halogen, C.sub.1 -C.sub.4 -alkyl and C.sub.1 -C.sub.4 -alkoxy;
R.sup.12 and R.sup.13 independently of one another are C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkylthio or, together with the common carbon atom to which they are bonded, are the carbonyl group, a group ##STR3## where R.sup.14 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -haloalkenyl having one to three halogen atoms, (C.sub.1 -C.sub.4 -alkoxy)carbonyl-(C.sub.1 -C.sub.4 -alkyl) or benzyl, or a heterocycle ##STR4## where Z is an ethylene or trimethylene chain in which, if desired, one to four hydrogen atoms can be substituted by C.sub.1 -C.sub.4 -alkyl or (C.sub.1 -C.sub.4 -alkoxy)carbonyl in each case,
The invention additionally relates to desiccation/defoliation of plants, defoliation of plants, which contain the compounds I as active substances, desiccation/defoliation of plants using the compounds I, and compositions for the desiccation/defoliation of plants using the compounds I.
In the earlier German Application DE-A 43 23 916, inter alia, 2-phenylpyridines of the compound I type are described as herbicides and as compounds having desiccant/defoliant activity. Suitable choice of the substituents results, inter alia, in compounds of the formula II ##STR5## where
R.sup.2 ' is halogen, cyano, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio or C.sub.1 -C.sub.4 -haloalkylthio;
R.sup.4 ' is hydrogen, nitro, amino, cyano, hydroxyl, mercapto, hydroxycarbonyl, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylamino, di-(C.sub.1 -C.sub.4 -alkyl)-amino, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio or (C.sub.1 -C.sub.4 -alkoxy)carbonyl;
R.sup.5 ' is hydrogen or halogen;
R.sup.7 ' is cyano, nitro, hydroxyl, halogen or trifluoromethyl;
R.sup.a is hydrogen or various organic radicals.
The herbicidal action of the known compounds with respect to the weeds, however, is not always comp
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Hamprecht Gerhard
Heistracher Elisabeth
Klintz Ralf
Konig Hartmann
Misslitz Ulf
BASF - Aktiengesellschaft
Lambkin Deborah
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