摘要:
The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions containing those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are each, independently of the others, hydrogen; halogen; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; nitro; cyano; C.sub.1 -C.sub.4 alkoxycarbonyl; C.sub.1 -C.sub.4 alkylcarbonyl; di-(C.sub.1 -C.sub.4 alkylamino)-carbonyl; mono-(C.sub.1 -C.sub.4 alkylamino)carbonyl; carbamoyl; C.sub.1 -C.sub.4 -haloalkyl-S(O).sub.n -; or -PO[O-(C.sub.1 -C.sub.4)-alkyl].sub.2 ;R.sup.4 is C.sub.1 -C.sub.6 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; phenyl that is unsubstituted or is substituted by up to three identical or different substituents from halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl and C.sub.1 -C.sub.4 alkoxy; 2-furanyl; 2-thienyl; 3-thienyl; C.sub.3 -C.sub.6 -cycloalkyl that is unsubstituted or is substituted by up to three identical or different C.sub.1 -C.sub.4 alkyl radicals; cyano; C.sub.2 -C.sub.4 haloalkenyl; C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy; or halogen-C.sub.1 -C.sub.4 alkylthio;R.sup.5 is hydrogen; C.sub.1 -C.sub.3 alkyl; C.sub.1 -C.sub.3 haloalkyl; halogen; or C.sub.1 -C.sub.3 haloalkoxy; andn is 0, 1 or 2,with the proviso that when one of the radicals R.sup.1, R.sup.2 and R.sup.3 is nitro, that substituent may not be bonded in the 2- or 6-position of the phenyl ring.
摘要:
The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions containing those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are each, independently of the others, hydrogen; halogen; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; nitro; cyano; C.sub.1 -C.sub.4 alkoxycarbonyl; C.sub.1 -C.sub.4 alkylcarbonyl; di-(C.sub.1 -C.sub.4 alkylamino)-carbonyl; mono-(C.sub.1 -C.sub.4 alkylamino)carbonyl; carbamoyl; C.sub.1 -C.sub.4 haloalkyl-S(O).sub.n -; or -PO[O-(C.sub.1 -C.sub.4)-alkyl].sub.2 ;R.sup.4 is C.sub.1 -C.sub.6 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; phenyl that is unsubstituted or is substituted by up to three identical or different substituents from halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl and C.sub.1 -C.sub.4 alkoxy; 2-furanyl; 2-thienyl; 3-thienyl; C.sub.3 -C.sub.6 -cycloalkyl that is unsubstituted or is substituted by up to three identical or different C.sub.1 -C.sub.4 alkyl radicals; cyano; C.sub.2 -C.sub.4 haloalkenyl; C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy; or halogen-C.sub.1 -C.sub.4 alkylthio;R.sup.5 is hydrogen; C.sub.1 -C.sub.3 alkyl; C.sub.1 -C.sub.3 haloalkyl; halogen; or C.sub.1 -C.sub.3 haloalkoxy; andn is 0, 1 or 2,with the proviso that when one of the radicals R.sup.1, R.sup.2 and R.sup.3 is nitro, that substituent may not be bonded in the 2- or 6-position of the phenyl ring.
摘要:
The invention relates to novel 2-nitro-4- or -5-pyridyloxyphenylphosphonic acid derivatives of the formula ##STR1## wherein X is halogen or trifluoromethyl, Y is hydrogen or halogen, one of the two substituents A and E is a phosphonate group ##STR2## wherein R is C.sub.1 -C.sub.4 alkyl or hydrogen, and the other is a nitro group, including the metal salts thereof and the salts thereof with ammonium and organic nitrogen bases, and to the preparation and use thereof. These compounds may be used for controlling weeds, regulating plant growth, or as microbicides.
摘要:
The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions that contain those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which the radicals R.sup.1 to R.sup.6 have the meanings given in the text.
摘要:
The invention relates to novel 2-nitro-4- or -5-pyridyloxyphenylphosphonic acid derivatives of the formula ##STR1## wherein X is halogen or trifluoromethyl, Y is hydrogen or halogen, one of the two substituents A and E is a phosphonate group ##STR2## wherein R is C.sub.1 -C.sub.4 alkyl or hydrogen, and the other is a nitro group, including the metal salts thereof and the salts thereof with ammonium and organic nitrogen bases, and to the preparation and use thereof. These compounds may be used for controlling weeds, regulating plant growth, or as microbicides.
摘要:
The present invention relates to the novel use of antidotes of formula I ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl, and each of R.sup.2 and R.sup.3, independently of the other, is hydrogen, C.sub.1 -C.sub.3 alkyl, trifluoromethyl or cyclopropyl, with the proviso that only one of the symbols R.sup.2 and R.sup.3 may be hydrogen, for protecting cultivated plants from the phytotoxic action of herbicides. The invention relates also to novel compounds and the preparation thereof and to novel intermediates and the preparation thereof. The invention further relates to herbicidal composition that contain a combination of herbicide and antidote and to corresponding method of controlling weeds. Finally, the invention relates also to the seeds of cultivated plants protected by the treatment with the antidote.
摘要:
Herbicidally effective aminoalkyl esters of 2-nitro-5-(o-chloro-p-trifluoromethylphenoxy)-benzoic acid, and acid addition salts and quaternary ammonium salts thereof, are suitable for the selective control of weeds in crops of useful plants, for example soya bean and rice crops.The aminoalkyl esters correspond to the formula ##STR1## wherein A is a C.sub.2 -C.sub.4 -alkylene bridge or the direct bond, and ##STR2## is an open amino group, and ##STR3## is a cyclic amino group.
摘要:
The present invention relates to novel herbicidal and plant growth-inhibiting 2-substituted 5-phenoxyphenylphosphonic acid derivatives of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 independently is hydroxyl, lower alkoxy, lower alkylthio, alkylamino, dialkylamino, chlorine, benzyloxy or benzylthio, X is halogen or a --CF.sub.3, --NO.sub.2, --CN, --CONH.sub.2 or --CSNH.sub.2 group, n is 0 to 3, and Y is --OH, halogen, NO.sub.2, --CN, NH.sub.2, --NHCO--R, --NHCOOR or --NH--SO.sub.2 --R, wherein R is an unsubstituted or halogenated lower alkyl radical. Preferred compounds are 2-nitro-5-(2'-chloro-4'-trifluoromethylphenoxy)-phenylphosphonic acid and the lower dialkyl esters thereof. The invention also relates to the production of the novel phosphonic acid derivatives, starting from a 3,4-dinitrodiphenyl ether and reacting it with a trialkylphosphite as first step. The invention further relates to herbicidal and plant growth-regulating compositions which contain one of the novel compounds as active component, and also to the use of these compounds and compositions for controlling weeds (also selectively), for inhibiting plant growth and desiccating parts of plants above the soil, as well as for totally destroying existing plant growth.
摘要:
The present invention relates to novel herbicidal and plant growth-inhibiting 2-substituted 5-phenoxyphenylphosphonic acid derivatives of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 independently is hydroxyl, lower alkoxy, lower alkylthio, alkylamino, dialkylamino, chlorine, benzyloxy or benzylthio, X is halogen or a --CF.sub.3, --NO.sub.2, --CN, --CONH.sub.2 or --CSNH.sub.2 group, n is 0 to 3, and Y is --OH, halogen, NO.sub.2, --CN, NH.sub.2, --NHCO--R, --NHCOOR or --NH--SO.sub.2 --R, wherein R is an unsubstituted or halogenated lower alkyl radical. Preferred compounds are 2-nitro-5-(2'-chloro-4'-trifluoromethylphenoxy)-phenylphosphonic acid and the lower dialkyl esters thereof. The invention also relates to the production of the novel phosphonic acid derivatives, starting from a 3,4-dinitrodiphenyl ether and reacting it with a trialkylphosphite as first step. The invention further relates to herbicidal and plant growth-regulating compositions which contain one of the novel compounds as active component, and also to the use of these compounds and compositions for controlling weeds (also selectively), for inhibiting plant growth and desiccating parts of plants above the soil, as well as for totally destroying existing plant growth.
摘要:
Novel 2-nitro-5-phenoxyphenyloxazoles, -oxazines and -thiazoles are disclosed. These compounds have the formula ##STR1## wherein A is a C.sub.2 -C.sub.3 alkylene or C.sub.2 -C.sub.3 alkenylene radical which can be substituted by C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl, each of R.sub.1, R.sub.2 and R.sub.3 independently is hydrogen, halogen, trifluoromethyl, nitro or cyano, and X is oxygen, sulfur or an imino group. The novel compounds have herbicidal and plant growth-inhibiting properties. They are especially suitable for use as selective herbicides in crops of cereals.