Abstract: Novel bicyclic triazole compounds of the formula I have an excellent herbicidal and plant-growth regulating action.The compounds correspond to the formula I ##STR1## wherein Q is hydrogen or halogen,T is halogen, andZ is a radical --XR or --COXR, in whichX is oxygen, sulfur or a radical --NR.sub.1 --,R is hydrogen, a C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.3 -C.sub.6 -alkynyl radical, which is unsubstituted or substituted by halogen, or is a radical --A--COXR.sub.1, in whichA is a C.sub.1 -C.sub.4 -alkylene bridge andR.sub.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.4 -alkenyl or C.sub.3 -C.sub.4 -alkynyl.

Abstract: 2-Phenoxypropionic acid cyanamides of the formula ##STR1## have a useful selective herbicidal activity against weeds, preferably grass weeds, in crops of useful plants.In this formulaR is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl or C.sub.2 -C.sub.4 alkoxyalkyl, andT is a radical ##STR2## wherein A is oxygen or sulfur,X is fluorine, chlorine, bromine, iodine or trifluoromethyl,Y is hydrogen, fluorine, chlorine, bromine or trifluoromethyl, andZ is nitrogen or the methine bridge.

Abstract: N-Pyrimidin-4-yl-N'-sulfonylureas of the formula I and the basic addition salts thereof have herbicidal properties and properties for regulating, especially inhibiting, plant growth: ##STR1## the symbols in this formula having the following meanings: Q is halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, nitro, amino, lower alkyl or dialkylamino, lower alkoxycarbonyl, formyl, lower alkoxyalkyl, lower alkoxyalkoxy, lower alkylthio, lower alkylsulfinyl or alkylsulfonyl, C.sub.1 -C.sub.4 -alkenyl or C.sub.1 -C.sub.4 -alkynyl,R.sub.1 is hydrogen, halogen, nitro, a ketal radical, a carbonyl radical substituted by allyl, haloalkyl, alkoxy or cycloalkyl, or is an oxime radical, a lower alkoxy, lower alkylthio, lower alkyl, lower alkylsulfinyl or sulfonyl group,R.sub.2 and R.sub.

Abstract: Novel pyrazinyl sulfonamides of the formulaQ--SO.sub.2 --NH.sub.2wherein Q is a substituted pyrazine group are intermediates for the production of sulfonylureas and suflonylthioureas which are useful in controlling weeds or selectively influencing plant growth.

Abstract: The claimed invention is a pyrazine of the formula: ##STR1## where Z is oxygen or sulfur and R is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl. The pyrazine ring may be variously further substituted. The above noted pyrazines are useful as intermediates in the production of herbicides.

Abstract: The invention relates to novel sulfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.

Abstract: 2-Phenoxypropionic acid cyanamides of the formula ##STR1## have a useful selective herbicidal activity against weeds, preferably grass weeds, in crops of useful plants.In this formulaR is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl or C.sub.2 -C.sub.4 alkoxyalkyl, andT is a radical ##STR2## wherein A is oxygen or sulfur,X is fluorine, chlorine, bromine, iodine or trifluoromethyl,Y is hydrogen, fluorine, chlorine, bromine or trifluormethyl, andZ is nitrogen or the methine bridge.

Abstract: The invention relates to a process for the preparation of aminotriazinone derivatives of the formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently alkyl, cycloalkyl, aralkyl or aryl, andR.sub.3 and R.sub.4 are each independently hydrogen, alkyl or cycloalkyl, or together with the nitrogen atom to which they are attached are a piperidine or morpholine ring, which process comprises phosgenating a compound of formula II ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, and reacting the resultant compound of formula III ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, without isolation or after isolation, with a compound of formula IV ##STR4## wherein R.sub.3 and R.sub.4 are as defined above. The invention also relates to the novel compounds of formula I and to the use thereof for controlling undesirable plant growth, as well as to compounds of the formula III.

Abstract: The invention relates to novel sulfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.

Abstract: N-heterocyclosulfonyl-N'-pyrimidinylureas and N-heterocyclosulfonyl-N'-triazinylureas of the general formula I ##STR1## wherein X is oxygen, sulfur, ##STR2## Y is oxygen or sulfur, Z is oxygen or sulfur,E is nitrogen or --CH.dbd.,R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 alkylthio, --NR.sub.6 R.sub.7 or alkoxyalkyl containing not more than 4 carbon atoms,R.sub.2 is hydrogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, halogen, nitro, C.sub.1 -C.sub.3 alkoxy, ##STR3## --SO.sub.2 --NR.sub.6 R.sub.7, --SO.sub.n --C.sub.1 -C.sub.3 alkyl or --CO--R.sub.9,R.sub.3 is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl, methoxy, nitro or trifluoromethyl,R.sub.4 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 cyanoalkyl, C.sub.3 14 C.sub.6 cycloalkyl, benzyl, --CO--C.sub.1 -C.sub.4 alkoxy, --CO--NR.sub.6 R.sub.7 or --CO--C.sub.1 -C.sub.

Abstract: There are claimed the triazine derivative, 3,4-di-(methylamino)-6-tert-butyl-4,5-dihydro-1,2,4-triazin-5-one, a process for producing it, compositions containing the triazine derivative, and the use of the triazine derivative or of compositions containing it, for controlling undesirable plant growth. The invention relates also to the intermediate, 3-methylthio-4-methylamino-6-tert-butyl-4,5-dihydro-1,2,4-triazin-5-one, developed for producing the triazine derivative, to a process for producing the intermediate, to compositions containing this intermediate and to the use of the intermediate or of compositions containing it for controlling undesirable plant growth.

Abstract: 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.

Abstract: Triaza compounds of the general formula I ##STR1## and their basic addition salts have good selective herbicidal and plant growth regulating properties when applied pre- and postemergence. In the formula, each of A.sub.1 and A.sub.2 is a homocyclic or heterocyclic aromatic radical such as phenyl, naphthyl, indanyl, imidazolyl, pyridinyl, pyrimidinyl, pyrazolyl or triazolyl, each of which is unsubstituted or mono- to trisubstituted, while only one of A.sub.1 and A.sub.2 may be a phenyl, naphthyl or indanyl radical, and each of R.sub.1 and R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.2 is hydrogen or a cation.

Abstract: 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.

Abstract: 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.

Abstract: Chlorosulfonyl urea compounds of the formula: ##STR1## wherein X is C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.2 -alkylthio, methoxymethyl, methoxyethyl, CF.sub.3 or chlorine, andY is C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.2 -alkylthio, methoxymethyl or methoxyethyl.

Abstract: A class of herbicidal unsaturated esters of .alpha.-[4-(3',5'-dihalogeno-pyridyl-2'-oxy)-phenoxy]-propionic and -thiolpropionic acid of the formula ##STR1## wherein Hal is chlorine or bromine, X is oxygen or sulfur, and R is an unsubstituted or halogenated aliphatic or alicyclic radical which may contain nitrogen, and which posseses at least one double and/or triple bond, with the proviso that if X is oxygen, R is not an unsubstituted alkenyl radical. These new esters are useful for selective post-emergent control of grassy weeds in cultivated plants such as wheat, barley, rice and soybean.

Abstract: 3-Phenoxy-.alpha.-phenoxy-alkancarboxylic acid derivatives of the formula ##STR1## are disclosed as possessing a surprising selective herbicidal activity. In the formula Hal is a halogen atom, m is an integer 1, 2, or 3, Y is a hydrogen or halogen atom or the cyano group, Z is a halogen atom or the cyano group, R.sub.1 is hydrogen or C.sub.1 -C.sub.8 alkyl, and R is an acid function. Methods are disclosed for combatting weeds in mono- and dicotyledonous cultures such as cereals, corn, rice, soya and cotton, which comprise applying to the locus to be protected from weeds a dosage of from 0.1 to 10.0 kilograms per hectare of the above compounds.

Abstract: A class of herbicidal unsaturated esters of .alpha.-[4-(3',5'-dihalogeno-pyridyl-2'-oxy)-phenoxy]-propionic and -thiolpropionic acid of the formula ##STR1## wherein Hal is chlorine or bromine, X is oxygen or sulfur, and R is an unsubstituted or halogenated aliphatic or alicyclic radical which may contain nitrogen, and which possesses at least one double and/or triple bond, with the proviso that if X is oxygen, R is not an unsubstituted alkenyl radical. These new esters are useful for selective post-emergent control of grassy weeds in cultivated plants such as wheat, barley, rice and soybean.

Abstract: Novel .alpha.-[4-(5'-trifluoromethylpyridyl-2'-oxy)-phenoxy]-propionic acid -.gamma.-butyrolactone esters and -thioesters of the formula ##STR1## wherein R is hydrogen or chlorine, and X is oxygen or sulfur, which compounds have herbicidal activity. They are especially suitable for selectively combating gramineous weeds in cultivated crops. These compounds are produced by esterifing pyridyloxy-phenoxy-propionic acid with .alpha.-bromo-.gamma.-butyrolactone.