摘要:
Cotton plants are defoliated by the action of an amount, having a defoliant effect, of a phenylsulfonylurea Ia or Ib ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl or C.sub.3 -C.sub.5 -alkoxyalkyl, and these radicals may each carry from 1 to 3 halogen atoms, or C.sub.3 - or C.sub.4 -alkenyl or C.sub.3 - or C.sub.4 -alkynyl, R.sup.2 is F, Cl or Br, R.sup.2' is H, F, Cl or Br, R.sup.3 is H, CH.sub.3 or C.sub.2 H.sub.5, R.sup.4 is halogen, CH.sub.3 or OCH.sub.3, R.sup.5 is CH.sub.3 or OCH.sub.3, R.sup.6 is halogen, C.sub.1 - or C.sub.2 -alkyl, C.sub.1 - or C.sub.2 -alkoxy, C.sub.1 - or C.sub.2 -alkylthio or C.sub.1 - or C.sub.2 -alkylamino and Z is CH or N, or of an alkali metal or alkaline earth metal salt of a compound Ia or Ib.
摘要:
Substituted sulfonylureas of the formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkenyl or alkynyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.3 -C.sub.6 -alkoxyalkyl, C.sub.4 -C.sub.6 -haloalkoxyalkyl or C.sub.5 -C.sub.6 -cycloalkyl,R.sup.2 is hydrogen, methyl or ethyl,R.sup.3 is hydrogen, halogen, methyl or methoxy,R.sup.4 is hydrogen, methyl or methoxy,X is N or C--H,and Hal is fluorine, chlorine or bromine, and alkali metal or alkaline earth metal salts thereof, with the proviso that R.sup.1 is not methyl when Hal is chlorine and X is N, a process for the manufacture of sulfonylureas of the formula I and their use as herbicides.
摘要:
Isoxazole(isothiazole)-5-carboxamides of the formula ##STR1## where X is oxygen or sulfur,R.sup.1 is hydrogen, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted cycloalkyl, a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, and which may be substituted, or substituted or unsubstituted phenyl, orR.sup.2 is formyl, 4,5-dihydrooxazol-2-yl or a radical of the formula COYR.sup.5 or CONR.sup.6 R.sup.7, whereY is oxygen or sulfur,R.sup.5 ishydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, haloalkenyl, substituted or unsubstituted alkynyl,cycloalkyl,cycloalkenyl,substituted or unsubstituted phenyl,a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen,cycloalkanimino, phthalimido, succinimido, or a radical ##STR2## R.sup.3 and R.sup.4 have the meanings defined herein, or their agriculturally acceptable salts possess herbicidal activity.
摘要:
N-((6-Trifluoromethylpyrimidin-2-yl)- aminocarbonyl)-2-carboalkoxybenzenesulfonamides of the general formula Ia ##STR1## where the substituents have the following meanings: R.sup.1 is hydrogen or halogen;R.sup.2 is hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, C.sub.1 -C.sub.5 -haloalkyl, C.sub.3 -C.sub.5 -alkoxyalkyl, C.sub.3 -C.sub.5 -haloalkoxyalkyl or C.sub.5 -C.sub.6 -cycloalkyl,R.sup.3 is hydrogen, C.sub.1 -C.sub.2 -alkyl, allyl, propargyl or C.sub.1 -C.sub.5 -alkoxy,R.sup.4 is halogen, C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkylthio or C.sub.1 -C.sub.3 -alkylamino,R.sup.3 not denoting hydrogen or C.sub.1 -C.sub.2 -alkyl when R.sup.4 is C.sub.1 -C.sub.2 -alkyl, and their environmentally tolerated salts, processes for their manufacture, and their use.
摘要:
The process of manufacturing thiazolo-(2,3-b)-quinoazolones of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined in the disclosure, wherein either a) an anthranilamide derivative of the formula II ##STR2## where R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 -alkyl, is reacted with a thiazole derivative of the formula III ##STR3## where X is fluorine, chlorine, bormine, alkylsulfonyl or arylsulfonyl, or b) for certain radicals R.sup.4' from the group R.sup.4 - a thiazolo-(2,3-b)-quinazolone of the general formula IV ##STR4## is reacted with a nucleophile R.sup.4' -H, where R.sup.4' is alkoxy, alkylthio or unsubstituted or halogen-, alkyl-, haloalkyl-, nitro- or alkoxy-substituted phenoxy or thiophenyl, or an alkali metal, alkaline earth metal or ammonium salt of an alcohol.
摘要:
Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
摘要:
A process for the preparation of 3,4-dichlorobenzotrihalides of the formula I ##STR1## where X is fluorine or chlorine, by reacting the corresponding 4-monochlorobenzotrihalides with chlorine gas in the presence of a catalytic amount of a Lewis acid, wherein the reaction mixture is recycled by means of a pump in a circulatory apparatus with static mixers and the amount of chlorine equivalent to the conversion of the corresponding 4-monochlorobenzotrihalide is introduced at 20.degree.-120.degree. C.
摘要:
Novel fluoromethylthiobenzoyl fluorides are prepared by reacting a trichloromethylthiobenzoyl chloride with hydrogen fluoride at from 10.degree. to 130.degree. C., and are useful starting materials for the preparation of crop protection agents. The process of the invention is selective in permitting the optional production of either a trifluoromethylthiobenzoyl fluoride or a difluoromonochloromethylthiobenzoyl fluoride, depending upon the temperature employed.
摘要:
Silyl-benzimidazole-2-carbamic acid esters of the formula I ##STR1## where Y and Z are hydrogen or a silyl radical of the formula ##STR2## where R.sup.1, R.sup.2 and R.sup.3 independently of one another are unsubstituted or halogen-substituted alkyl, alkenyl or alkynyl of up to 12 carbon atoms, cycloalkyl of up to 7 carbon atoms which is unsubstituted or substituted by alkyl or alkynyl of up to 4 carbon atoms, or phenyl which is unsubstituted or substituted by halogen or alkyl of up to 4 carbon atoms, and R is alkyl of up to 4 carbon atoms, with the proviso that Y and Z are not both hydrogen, and their use as fungicides.The new active ingredients are particularly suitable for combating harmful phycomycetes, ascomycetes and fungi imperfecti.
摘要:
2-Aryloxy-2-halopropionic acid compounds are prepared by reacting 2-aryloxypropionic acid compounds with N-halocarboxylic acid imides in the presence of aliphatic halohydrocarbons as solvents, and of from 0.0001 to 0.001 mole of halogen per mole of N-halocarboxylic acid imide, from 0.005 to 0.05 per cent by weight of water, based on N-halocarboxylic acid imide, and from 0.0005 to 0.005 mole of azo-bis-isobutyronitrile and/or dibenzoyl peroxide, per mole of N-halocarboxylic acid imide.The end products obtainable by the process of the invention are valuable starting materials for the preparation of drugs, crop protection agents and dyes.