Abstract: N-Acyl-piperidones of the formula ##STR1## wherein R represents methyl or chloro, and their use as antidotes for protecting crop plants from herbicidal damage.

Abstract: Novel benzyl ethers of cyclic 1,1-diols, of the formula ##STR1## wherein R.sup.1 is phenyl or substituted phenyl,R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl or --CHX--R.sup.1,X is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, phenyl or substituted phenyl,Y and Y' are individually selected from hydrogen, alkyl, phenyl and substituted phenyl andA is saturated or unsaturated alkylene or substituted alkylene;have been found outstandingly effective as herbicides, particularly as selective herbicides.

Abstract: A 4,5-dichloro-imidazole derivative of the formula ##STR1## in which X represents a ##STR2## in which R.sup.1 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group,R.sup.

Abstract: A 4,5-dichloro-imidazole-1-carboxylic acid aryl ester of the formula ##STR1## in which X represents a group ##STR2## in which R.sup.2 and R.sup.3 conjointly with the adjoining nitrogen atom form a morpholine, thiamorpholine, or piperazine ring,Y represents halogen, alkyl with 1 to 6 carbon atoms, trifluoromethyl, alkoxy with 1 to 6 carbon atoms, alkylmercapto with 1 to 6 carbon atoms, nitro, cyano or ##STR3## in which R.sup.4 represents alkyl with 1 to 6 carbon atoms and n represents 0, 1, 2, 3, 4 or 5,which possesses plant protection properties especially herbicidal and plant growth regulant properties.

Abstract: A 4,5-dicloro-imidazole-1-carboxylic acid aryl ester of the formula ##STR1## in which X represents ##STR2## wherein R.sup.2 represents hydrogen, C.sub.1-8 alkyl, alkenyl, or the formyl group andR.sup.3 represents phenyl or substituted phenyland their use as herbicides.

Abstract: New heterocyclic-substituted 1,3,4,-thiadiazole derivatives of the formula ##STR1## in which R.sup.1 is alkyl, alkenyl, haloalkyl, optionally substituted aralkyl, optionally substituted aryl, alkylthio, alkylsulfonyl, alkylsulfoxyl, aralkylthio, aralkylsulfonyl or aralkylsulfoxyl,R.sup.2 is methyl or ethyl, andn is 1 or 2,are surprisingly effective as herbicides and are particularly useful as selective herbicides for combating grasses, especially in crops of cereals or cotton.

Abstract: 1-Acyloxymethyl-4,5-dichloro-imidazole-2-carboxylic acid derivatives of the formula ##STR1## in which X represents trifluoromethyl, cyano or a group ##STR2## in which R.sup.1 represents a saturated or unsaturated aliphatic radical, which can be carrying one or more substituents selected from halogen, alkoxy with 1 to 6 carbon atoms and alkylmercapto with 1 to 6 carbon atoms, R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group, R.sup.

Abstract: A 4,5-dichloro-imidazole-1-carboxylic acid aryl ester of the formula ##STR1## in which X represents trifluoromethyl, cyano or a group ##STR2## in which R.sup.1 represents a saturated or unsaturated aliphatic radical, which can be carrying one or more substituents selected from halogen, alkoxy with 1 to 6 carbon atoms and alkylmercapto with 1 to 6 carbon atoms, R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group, R.sup.

Abstract: A 4,5-dichloro-imidazole derivative of the formula ##STR1## in which X represents trifluoromethyl, cyano or a ##STR2## or ##STR3## in which R.sup.1 represents a saturated or unsaturated aliphatic radical, which can be carrying one or more substituents selected from halogen, alkoxy with 1 to 6 carbon atoms and alkylmercapto with 1 to 6 carbon atoms,R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group,R.sup.

Abstract: A 4,5-dichloro-imidazole-1-carboxylic acid aryl ester of the formula ##STR1## in which X represents trifluoromethyl, cyano or a group ##STR2## in which R.sup.1 represents an optionally substituted saturated or unsaturated aliphatic radical, R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group, R.sup.3 represents alkyl with 1 to 8 carbon atoms or alkenyl or alkynyl each with up to 8 carbon atoms, it being possible for each of these alkyl, alkenyl and alkynyl radicals to carry one or more substituents, or represents cycloalkyl with 5 to 7 carbon atoms in the ring which is optionally substituted by alkyl with 1 to 6 carbon atoms, or represents phenyl which may optionally carry one or more substituents, or R.sup.2 and R.sup.

Abstract: 4,5-Dichloroimidazole-2-carboxylic acid derivatives of the formula ##STR1## in which the group ##STR2## represents a carbon atom which has three bonds to hetero-atoms, and their salts with bases,possess insecticidal, acaricidal, fungicidal, nematicidal and herbicidal properties.

Abstract: A 4,5-dichloro-imidazole derivative of the formula ##STR1## in which X represents trifluoromethyl, cyano or a ##STR2## in which R.sup.1 represents an optionally saturated or unsaturated aliphatic radical,R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group,R.sup.3 represents hydrogen, alkyl with 1 to 8 carbon atoms or alkenyl or alkynyl with up to 8 carbon atoms, it being possible for each of these alkyl, alkenyl and alkynyl radicals to carry one or more substituents, or represents cycloalkyl with 5 to 7 carbon atoms in the ring which is optionally substituted by alkyl with 1 to 6 carbon atoms, or represents phenyl which may optionally carry one or more substituents, orR.sup.2 and R.sup.

Abstract: Novel 1-acyloxymethyl-4,5-dichloro-imidazole-2-carboxylic acid derivatives of the formula ##STR1## in which X represents trifluoromethyl, cyano or a group ##STR2## in which R.sup.1 represents an optionally substituted saturated or unsaturated aliphatic radical, R.sup.2 represents hydrogen, alkyl with 1 to 8 carbon atoms, alkenyl with up to 8 carbon atoms or the formyl group, R.sup.3 represents alkyl with 1 to 8 carbon atoms or alkenyl or alkynyl each with up to 8 carbon atoms, it being possible for each of these alkyl, alkenyl and alkynyl radicals to carry one or more substituents, or represents cycloalkyl with 5 to 7 carbon atoms in the ring which is optionally substituted by alkyl with 1 to 6 carbon atoms, or represents phenyl which may optionally carry one or more substituents, or R.sup.2 and R.sup.

Abstract: 3-(1,3,4-THIADIAZOL-2-YL)-5-ACYLOXY(CARBAMOYLOXY)HYDANTOIN COMPOUNDS OF THE FORMULA: ##STR1## in which R is alkyl, haloalkyl, alkylmercapto or alkylsulfonyl,R.sup.1 is alkyl, andR.sup.2 is alkylcarbonyl, alkoxycarbonyl, alkylcarbamoyl or optionally substituted arylcarbonyl;Are remarkably active as herbicides and are particularly useful as selective herbicides in cotton cultivations or in cereal crops, including corn.

Abstract: New tetrahydrofuran-ether compounds of the formula ##STR1## in which A is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, or substituted phenyl,B.sup.1, b.sup.2, c.sup.1, c.sup.2, d.sup.1 and D.sup.2, which are selected independently of one another, each represent hydrogen, alkyl, haloalkyl, alkoxyalkyl, phenyl, or substituted phenyl,R is aryl or substituted aryl; andX is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, phenyl, or substituted phenyl;Exhibit powerful herbicidal, especially selectively herbicidal, properties and are particularly useful as grass herbicides.

Abstract: 1,3,4-Thiadiazol-5-yl-ureas, i.e. N-[2-(alkyl, alkylmercapto, alkenylmercapto alkynylmercapto, chloro-substituted benzylmercapto, carboxy-alkylmercapto, aminocarbonyl-alkylmercapto, chlorophenyl-aminocarbonyl-alkylmercapto, alkylsulfonyl, benzylsulfonyl and alkoxy)-1,3,4-thiadiazol-5-yl]-N-alkyl-[N'-mono- and N',N'-di-alkyl]-ureas, which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: New heterocyclically-substituted 4-amino-1,2,4-triazin-5-one compounds, herbicidal compositions containing them and their use as herbicides are disclosed.It is known that 1,2,4-triazionones, such as, for example, 4-amino-3-methyl-6-phenyl-1,2,4-triazine-5-one, can be used for combatting weeds, especially for selectively combatting weeds, from German Offenlegungsschrift (German Published Specification) 2,224,161. Their general herbicidal action is, however, not always entirely statisfactory, especially when low amounts and low concentrations are used.

Abstract: Halogenated 4-trifluoromethyl-4'-nitro-diphenyl-ether compounds of the formula ##STR1## in which R is halogen or methylthio, andX is hydrogen or chlorine,Are outstandingly effective as herbicides, particularly as selective herbicides.

Abstract: A herbicidal composition containing as active ingredients(1) 4-amino-6-tert.-butyl-3-methylthio-1,2,4-triazin-5-one of the formula ##STR1## and (2) 2,6-dichloro-4-trifluoromethyl-4'-cyano-diphenyl ether of the formula ##STR2## preferably in a weight ratio from about 1:0.05 to 1:10. The composition can be used as a total herbicide or, at suitable levels of application, in growing crops as a selective herbicide against particularly resistant weeds.

Abstract: 4-(3-Trifluoromethylphenoxy)-phenylurea compounds of the formula ##STR1## wherein R is hydrogen or methyl,Exhibit powerful herbicidal properties.