Abstract: Herbicidal substituted triazolinones of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkenyl, alkynyl, halogenoalkyl, halogenoalkenyl, halogenoalkynyl, alkoxyalkyl, alkoxy, cycloalkylalkyl, cycloalkyl or in each case optionally substituted aralkyl or aryl,R.sup.2 represents alkyl, alkenyl, alkynyl, halogenoalkyl, halogenoalkenyl, halogenoalkynyl, alkoxyalkyl, alkoxy, cycloalkylalkyl, cycloalkyl or in each case optionally substituted aralkyl or aryl,R.sup.3 and R.sup.

Abstract: Dichloropinacolone is produced by introducing into pinacolone twice the molar amount of chlorine, the exothermic reaction mass being cooled initially to maintain the temperature below about 50.degree. C. until about 60 to 80% of the chlorine has been introduced, and then heating the reaction mass to a temperature above 50.degree. C. during introducing of the remainder of the chlorine, thereby to produce dichloropinacolone, and terminating chlorine introduction when the dichloropinacolone content of the reaction mass is at least about 97%. The molten product is added to an aqueous solution of an alkali maintained at a temperature of at least about 50.degree. C., the alkali being present in more than three times the molar amount of the dichloropinacolone. To the resulting solution of a salt of 3,3-dimethyl-2-hydroxy-butyric acid, brought to a pH of about 9 to 12, there is added approximately the stoichiometric amount of potassium permanganate. Solid MnO.sub.

Abstract: Herbicidal 3,4,6-trisubstituted 1,2,4-triazin-5(4H)-ones of the formula ##STR1## in which R.sup.1 represents hydrogen or methyl,R.sup.2 represents amino, methylamino or methyl andR.sup.3 represents methylthio, ethylthio, methylamino, ethylamino, allylamino, dimethylamino, methylethylamino or diethylamino.Novel intermediates therefor are also shown.

Abstract: A herbicidal composition comprising a herbicidally effective among of(a) a photosynthesis-inhibiting herbicidally active compound, and(b) a synergistically effective amount of a carbamate derivative of the formula (II) ##STR1## in which R.sup.1 is alkyl, halogenoalkyl, alkenyl, alkinyl or optionally substituted phenyl,R.sup.2 is alkyl, halogenoalkyl, alkoxy, alkenyl, optionally substituted cycloalkyl or optionally substituted cycloalkylalkyl,R.sup.3 is hydrogen, --CO--OR.sup.4, --CO--CO--OR.sup.5 or --CO--CO--NR.sup.6 R.sup.7,R.sup.4 is alkyl, alkenyl, alkinyl or optionally substituted phenyl,R.sup.5 is alkyl, alkenyl or alkinyl, andR.sup.6 and R.sup.7 each independently is hydrogen, alkyl or alkenyl.

Abstract: Dichloropinacolone is produced by introducing into pinacolone twice the molar amount of chlorine, the exothermic reaction mass being cooled initially to maintain the temperature below about 50.degree. C. until about 60 to 80% of the chlorine has been introduced, and then heating the reaction mass to a temperature above 50.degree. C. during introducing of the remainder of the chlorine, thereby to produce dichloropinacolone, and terminating chlorine introduction when the dichloropinacolone content of the reaction mass is at least about 97%. The molten product is added to an aqueous solution of an alkali maintained at a temperature of at least about 50.degree. C., the alkali being present in more than three times the molar amount of the dichloropinacolone. To the resulting solution of a salt of 3,3-dimethyl-2-hydroxy-butyric acid, brought to a pH of about 9 to 12, there is added approximately the stoichiometric amount of potassium permanganate. Solid MnO.sub.

Abstract: A process for the preparation of a herbicidally active 1-amino-1,3,5-triazone-2,4 (1H,3H)-dione of the formula ##STR1## comprising in a first stage at a temperature from about 0.degree. to 100.degree. C. reacting an isocyanate of the formulaR.sup.1 - NCO (II)with an isothio semicarbazone of the tautomeric formulas ##STR2## in which R.sup.3 and R.sup.4 each independently is hydrogen, alkyl, cycloalkyl, aralkyl o alkyl, cycloalkyl, aralkyl or aryl,thereby to form a urea derivative of the tautomeric formulas ##STR3## in a second stage at a temperature between about -50.degree. and 0.degree. C. reacting the urea derivative with phosgene (COCl.sub.

Abstract: The present invention relates to a process for the preparation of N-substituted imido-dicarboxylic acid diaryl ester compound of the formulaR.sup.1 --N(CO--OR.sup.2).sub.2 (I)whereinR.sup.1 is an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical; andR.sup.2 is an optionally substituted aryl radical, which are useful as intermediates for the production of known herbicides, which process comprises reacting a primary amine of the formulaR.sup.1 --NH.sub.2 (II)with a carbonic acid aryl ester halide of the formulaX--CO--OR.sup.2 (III)wherein X is a halogen atom, at a temperature between 100.degree. and 300.degree. C.

Abstract: A selectively herbicidal composition of matter comprising a herbicidally effective amount of(i) 4-amino-6-tert.-butyl-3-ethylthio-1,2,4-triazin-5(4H)-one, and(ii) at least one ofS-2,3,3-trichloroallyl diisopropyl-thiolcarbamate,S-2,3-dichloroallyl diisopropyl-thiolcarbamate,1-amino-6-ethylthio-3-(2,2-dimethylpropyl)-1,3,5-triazine-2,4(1H,3H)-dione,1,2-dimethyl-3,5-diphenyl-pyrazolium methyl-sulphate,ethyl N-benzoyl-N-(3,4-dichlorophenyl)-2-amino-propionate,isopropyl N-benzoyl-N-(3-chloro-4-fluorophenyl)-2-amino-propionate,methyl N-benzoyl-N-(3-chloro-4-fluorophenyl)-2-amino-propionate,methyl 2-[4-(2,4-dichlorophenoxy)-phenoxy]-propionate, andmethyl 2-chloro-3-(4-chlorophenyl)-propionate.Ingredient (i) above as well as the compositions are especially suited for selectively killing monocotyledon and dicotyledon weeds in the cultivation of cereals and leguminous plants.

Abstract: Novel N-substituted imido-dicarboxylic acid diaryl ester compounds of the general formula ##STR1## in which R.sup.1 represents an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic, heterocyclic radical andR.sup.2 and R.sup.3 can be identical or different and represent an optionally substituted aryl radical,and a process for their preparation characterized in that a carbamic acid aryl ester of the general formula:R.sup.1 --NH--CO--OR.sup.2 (II)in which R.sup.1 and R.sup.2 have the abovementioned meanings, is reacted with a carbonic acid aryl ester halide of the general formulaX--CO--OR.sup.3 (III)in whichR.sup.3 has the abovementioned meaning andX represents a halogen atom, optionally in the presence of a diluent, optionally at a temperature between 100.degree. and 300.degree. C.The new compounds (I) can be used as intermediate products for the preparation of known herbicidal active compounds from the 1,3,5-triazine,2,4-(1H,3H)-dione series.

Abstract: Novel N-substituted imido-dicarboxylic acid diaryl ester compounds of the general formula ##STR1## in which R.sup.1 represents an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic, heterocyclic radical andR.sup.2 and R.sup.3 can be identical or different and represent an optionally substituted aryl radical, and a process for their preparation characterized in that a carbamic acid aryl ester of the general formulaR.sup.1 --NH--CO--OR.sup.2 (II)in which R.sup.1 and R.sup.2 have the abovementioned meanings, is reacted with a carbonic acid aryl ester halide of the general formulaX--CO--OR.sup.3 (III)in whichR.sup.3 has the abovementioned meaning andX represents a halogen atom, optionally in the presence of a diluent, optionally at a temperature between 100.degree. and 300.degree. C.The new compounds (I) can be used as intermediate products for the preparation of known herbicidal active compounds from the 1,3,5-triazine,2,4-(1H,3H)-dione series.

Abstract: 3-Dimethylamino-4-methyl-1,2,4-triazin-5(4H)-one compounds of the formula ##STR1## in which R.sup.1 is t-butyl, sec.-butyl or cyclohexyl;are effective herbicides.

Abstract: Herbicidal 1-amino-1,3,5-triazine-2,4(1H, 3H)-diones of the general formula ##STR1## are obtained in good yields if an N-substituted O-aryl N-chlorocarbonyl carbamate of the general formula ##STR2## is reacted with an isothiosemicarbazone of the general formula ##STR3## or hydrohalide thereof, (R.sup.1 to R.sup.4 in formulae (I) to (III) having the meanings given in the description), at a temperature between 0.degree. and 50.degree. C., in the presence of an acid-binding agent, the open-chain intermediate products formed thereby are then heated (if appropriate without intermediate isolation), in a second stage, to a temperature between 50.degree. and 150.degree. C. and, finally, in a third stage, the 1-alkylideneamino-1,3,5-triazine-2,4(1H, 3H)-dione formed thereby is hydrolyzed (if appropriate again without intermediate isolation) in an acid medium.

Abstract: A process for the preparation of a 1-amino-1,3,5-triazine-2,4(1H, 3H)-dione compounds comprising the steps of reacting an N-substituted imido-dicarboxylic acid diaryl ester with an isothiosemicarbazone at a temperature of between 50.degree. and 150.degree. C. to form a 1-alkylidene-amino-1,3,5-triazine-2,4(1H, 3H)-dione reaction product; and thereafter, hydrolyzing the reaction product in an acid medium. The reaction product need not be separated from the reaction mixture before the hydrolysis step. Certain novel 1-amino-1,3,5-triazine-2,4(1H, 3H)-dione compounds are provided. The compounds are useful as herbicides.

Abstract: This invention relates to a process for the preparation of N-substituted imido-dicarboxylic acid diaryl ester compound of the formulaR.sup.1 --N(CO--OR.sup.2).sub.2 (I)whereinR.sup.1 is an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, andR.sup.2 is an optionally substituted aryl radical,which can be used as intermediates for the production of known herbicides, which process comprises reacting an amine salt of the formulaR.sup.1 --NH.sub.2.HX.sup.1 (II)wherein X.sup.1 is a halogen, with a carbonic acid aryl ester halide of the formulaR.sup.2 --O--CO--X.sup.2 (III)wherein X.sup.2 is halogen, at a temperature from 100.degree. C. to 300.degree. C.

Abstract: Novel method for regulating the growth of plants which method comprises applying to the plants or their habitat, effective amounts of heterocyclic compound of the formula ##STR1## in which R.sup.1 is alkyl or optionally substituted aryl,R.sup.2 is hydrogen, alkyl or optionally substituted aryl,R.sup.3 is hydrogen or the radical ##STR2## in which Y is oxygen or sulfur andR.sup.5 is alkyl, haloalkyl, alkoxyalkyl, aryloxyalkyl, which is optionally substituted in the aryloxy part, alkoxy, optionally substituted aryl, optionally substituted aryloxy, monoalkylamino, dialkylamino, alkenylamino, dialkenylamino, optionally substituted arylamino, a 5-membered to 7-membered heterocyclic ring, bonded via nitrogen, or the radical ##STR3## in which R.sup.6 is hydrogen or alkyl andR.sup.7 is hydrogen or alkyl, orR.sup.6 and R.sup.7, together with the adjacent nitrogen atom, are a 5-membered to 7-membered heterocyclic ring,R.sup.4 is cyano or the grouping --COR.sup.8in whichR.sup.

Abstract: The invention provides herbicidal compositions containing as active ingredients (1) a 1,2,4-triazin-5-(4H)-one derivative of the general formula ##STR1## in which R is amino or isobutylideneamino, and (2) a phenoxyalkanecarboxylic acid of the general formula ##STR2## in which X is methylene or methylmethylene,R.sub.1 is chlorine or methyl andR.sub.2 is hydrogen or chlorine,Which may be in the form of a salt or ester thereof, alone or in admixture with a solid or liquid or liquefied gaseous diluent or carrier;Which combinations provide synergistic weed-killing action against a wide range of weeds in cereals.

Abstract: N-(1,2,4-Triazin-5-on-4-yl)-glycine compounds of the formula ##STR1## in which R.sup.1 is alkyl, alkoxy, alkylthio or alkylamino,R.sup.2 is alkyl, cycloalkyl, phenyl or substituted phenyl,R.sup.3 is hydrogen, alkyl, alkenyl or alkynyl andR.sup.4 is hydroxyl, alkoxy, alkythio, amino, alkylamino or dialkylamino,Possess outstanding selective herbicidal properties.

Abstract: New 6-sec.-butyl-1,2,4-triazin-5(4H)-one compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen, orR.sup.1 and R.sup.2 together represent alkylidene or substituted alkylidene of the formula: ##STR2## wherein R.sup.3 is hydrogen, alkyl or cycloalkyl, and R.sup.4 is alkyl, alkenyl, cycloalkyl, cycloalkenyl, aralkyl, aralkenyl, optionally substituted aryl or an optionally substituted heterocyclic radical, orR.sup.3 and R.sup.4 together with the carbon atom shown from a 5-membered to 7-membered ring, andY is sulfur, NH or NCH.sub.3 ;are outstandingly active herbicides.

Abstract: Dichloropinacolone is produced by introducing into pinacolone twice the molar amount of chlorine, the exothermic reaction mass being cooled initially to maintain the temperature below about 50.degree. C until about 60 to 80% of the chlorine has been introduced, and then heating the reaction mass to a temperature above 50.degree. C during introducing of the remainder of the chlorine, thereby to produce dichloropinacolone, and terminating chlorine introduction when the dichloropinacolone content of the reaction mass is at least about 97%. The molten product is added to an aqueous solution of an alkali maintained at a temperature of at least about 50.degree. C, the alkali being present in more than three times the molar amount of the dichloropinacolone. To the resulting solution of a salt of 3,3-dimethyl-2-hydroxy-butyric acid, brought to a pH of about 9 to 12, there is added approximately the stoichiometric amount of potassium permanganate. Solid MnO.sub.

Abstract: In the methylation of 4-amino-6-t.-butyl-3-mercapto-1,2,4-triazin-5-one to produce 4-amino-6-t.-butyl-3-methylmercapto-1,2,4-triazine-5-one using methyl bromide, the reaction is run in the absence of air whereby product coloration is avoided. Desirably considerable agitation is employed along with recycle and especially with an emulsifying agent which markedly speeds up the reaction. Measures such as operating under a slight vacuum and recycle of unused methyl bromide and mother liquor are employed to improve the yield and to avoid the problems of discharging the bromides to the environment.