Abstract: A process for the preparation of 2-chloro-5-amino-methyl-pyridine of the formula ##STR1## comprising reacting 2-chloro-5-chloromethyl-pyridine of the formula ##STR2## with excess ammonia, optionally in the presence of a diluent, at a temperature between about -50.degree. C. and +50.degree. C.

Abstract: Fungicidal 2,5-disubstituted 1,3,4-thiadiazoles of the formula ##STR1## in which R.sup.1 represents alkyl or unsubstituted or substituted aralkyl andR.sup.2 represents in each case unsubstituted or substituted aryl or aralkyl, or represents an unsubstituted or substituted and optionally benzo-fused heterocyclic radical,excluding the compound 2,5-bis[(phenylmethyl)-sulphonyl]-1,3,4-thiadiazole.

Abstract: The invention relates to new sulphonyliso(thio)-urea derivatives of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl,R.sup.2 represents an optionally substituted and/or optionally fused 6-membered aromatic heterocyclic radical containing at least one nitrogen atom,R.sup.3 represents an optically substituted aromatic or heteroaromatic radical,X represents oxygen or sulphur andM represents hydrogen or an equivalent of a metal,and adducts of compounds of the formula (I) with strong acids, processes for their preparation, and their use as herbicides.

Abstract: Pesticidal 3-substituted 1-nitro-2-imino-1,3-diazacycloalkanes of the formula ##STR1## in which n stands for the numbers 0 or 1,R.sup.1 stands for a five- or six-membered heterocyclic group which contains 1, 2, 3 or 4 nitrogen atoms and/or one or two oxygen atoms or sulphur atoms as hetero atom ring members--the number of the hetero atoms being 1, 2, 3 or 4--and which is optionally substituted by halogen, cyano, nitro, alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, alkinyl, alkoxy, halogenoalkoxy, alkenyloxy, halogenoalkenyloxy, alkinyloxy, alkylthio, halogenoalkylthio, alkenylthio, halogenoalkenylthio, alkinylthio, alkylsulphinyl, halogenoalkylsulphinyl, alkylsulphonyl, halogenoalkylsulphonyl, amino, alkylamino, dialkylamino, aryl, aryloxy, arylthio, arylamino, aralkyl, formylamino, alkylcarbonylamino, formyl, carbamoyl, alkylcarbonyl and/or alkoxycarbonyl,R.sup.2 stands for hydrogen or alkyl andR.sup.3 stands for hydrogen or nitro.

Abstract: A process for preparing 2,4-dichloro-5-dichloromethyl-thiazole of the formula ##STR1## which comprises reacting 2,4-dichloro-5-thiazole-carboxaldehyde of the formula ##STR2## with thionyl chloride (SOCl.sub.2) in the presence of a halogenating catalyst at a temperature between 0.degree. C. and 100.degree. C. Preferred catalysts are aprotic organic nitrogen or phosphorus compounds. The products are directly obtained in high yield and purity so they can be directly used as bactericides or as intermediates for herbicides.

Abstract: The invention relates relates to new sulphonyliso(thio)-urea derivatives of the general formula (I) ##STR1## in which R.sup.1 represent an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroarylR.sup.2 represents an optionally substituted and/or optionally fused 6-membered aromatic heterocyclic radial containing at least one nitrogen atom,R.sup.3 represents an optically substituted aromatic or heteroaromatic radical,X represents oxygen or sulphur andM represents hydrogen or an equivalent of a metal, and adducts of compounds of the formula (I) with strong acids, processes for their prepartion, and their use as herbicides.

Abstract: Herbicidally active 1-(2-oxyaminosulphenylphenylsulphonyl)-3-triazinyl-ureas of the formula ##STR1## in which X is nitrogen,Y is nitrogn,Z is C-R.sup.6 andR.sup.1, R.sup.2, R.sup.4 and R.sup.6 are various organic radicals.

Abstract: 5-Halogenoalkyl-1,3,4-thiadiazol-2-yloxyacetamides of the formula ##STR1## in which R.sup.1 is halogenoalkyl, with the exception of trifluoromethyl, andR.sup.2 and R.sup.3 each independently is hydrogen, alkyl, alkenyl, alkinyl, in each case optionally substituted cycloalkyl or cycloalkenyl, halogenoalkyl, alkoxyalkyl, alkoxyalkylenoxy, alkoxy, aralkyl or optionally substituted aryl, orR.sup.2 and R.sup.3, together with the nitrogen atom to which they are bonded, form an optionally substituted heterocyclic radical which can contain further hetero-atoms,which possess herbicidal and fungicidal activity. The intermediates 5-chlorodifluoromethyl- and 5-dichlorofluoromethyl-2-chloro-1,3,4- thiadiazole are also new.

Abstract: 3-Substituted 1-(2-halogenoalkoxy-benzenesulphonyl)-3-heteroaryl-(thio)urea herbicides of the formula ##STR1## in which (A)R is CF.sub.3,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.3, OCH.sub.3, OC.sub.2 H.sub.5, SCH.sub.3, NH--CH.sub.3 or NH--C.sub.2 H.sub.5,X is N,Y is N andZ is C--CH.sub.3, C--C.sub.2 H.sub.5, C--OCH.sub.3 or C--OC.sub.2 H.sub.5 ; or(B)R is CF.sub.3,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.3, OCH.sub.3 or OC.sub.2 H.sub.5,X is N,Y is C--H andZ is C--C.sub.2 H.sub.5, C--OCH.sub.3 or C--OC.sub.2 H.sub.5 ; or(C)R is CH.sub.2 --CH.sub.2 Cl,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.

Abstract: The invention relates to new benzodisultams of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl and aralkyl, andR.sup.3 represents an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation and their use as herbicides.

Abstract: A selective herbicide of the formula ##STR1## in which m is 0, 1 or 2,R.sup.5 is an organic radical,R.sup.3 is hydrogen or an organic radical,R.sup.9 is hydrogen or an optionally substituted alkyl radical,R.sup.10 is an organic radical or forms a ring with R.sup.9,R.sup.40 and R.sup.41 are alkyl or alkoxy, andM is hydrogen or a metal or ammonium radical, or an acid adduct thereof.

Abstract: Herbicidally active oxyguanidine derivatives of the formula ##STR1## in which M represents hydrogen or one equivalent of a metal,R.sup.1 represents halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, phenyl or C.sub.1 -C.sub.2 -alkoxy-carbonyl,R.sup.2 represents hydrogen or the radical ##STR2## and R.sup.3 represents C.sub.4 -C.sub.12 -alkyl, isopropyl or--if M represents one equivalent of a metal--also propyl, or represents C.sub.2 -C.sub.12 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.2 -alkyl, aminocarbonylmethyl, C.sub.1 -C.sub.4 -alkylaminocarbonylmethyl, di-C.sub.1 -C.sub.4 -alkylaminocarbonylmethyl, C.sub.3 -C.sub.12 -alkenyl, C.sub.3 -C.sub.12 -alkinyl, benzyl which is substituted by halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl, or phenyl, benzhydryl, or phenethyl, all optionally substituted by halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.

Abstract: 1-(2-Trifluoromethoxy-phenylsulphonyl)-3-heteroaryl-(thio)urea herbicides of the formula ##STR1## in which Q represents oxygen or sulphur,R.sup.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl,R.sup.2 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -halogenoalkylthio, amino, C.sub.1 -C.sub.4 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)-amino,X represents nitrogen or a --CH-- grouping,Y represents nitrogen or a --CR.sup.3 -- grouping,whereinR.sup.3 represents hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, (C.sub.1 -C.sub.2 -alkyl)-carbonyl or (C.sub.1 -C.sub.2 -alkoxy)-carbonyl, andZ represents nitrogen or a --CR.sup.4 -- grouping,whereinR.sup.4 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)-amino.

Abstract: Herbicidally active guanidine derivatives of the formula ##STR1## in which m represents the numbers zero, 1 or 2,R.sup.5 represents an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl,R.sup.2 represents a pyrimidin-2-yl radical which is substituted by halogen, amino, cyano or formyl and/or by optionally substituted radicals from the series comprising alkyl, alkoxy, alkylamino, dialkylamino, alkylcarbonyl and alkoxycarbonyl,R.sup.3 represents hydrogen, an optionally substituted radical from series comprising alkyl, cycloalkyl, alkenyl, alkinyl and aralkyl,R.sup.9 represents hydrogen or optionally substituted alkyl andR.sup.10 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aryl, heteroaryl, alkyl- or alkoxycarbonyl and alkyl- or arylsulphonyl, or R.sup.9 and R.sup.

Abstract: Novel herbicidally active fluoroalkoxyphenylsulphonylguanidines of the formula ##STR1## in which M is hydrogen or one equivalent of a metal,R.sup.1 is fluorine-substituted alkyl, andR.sup.2, R.sup.3 and R.sup.4 each independently is hydrogen or various organic radicals,or 1:1 adducts thereof with strong acids.

Abstract: Herbicidally active novel N,N'-bis-sulphonyl guanidines of the formula ##STR1## in which M is hydrogen, a metal or an ammonium radical, andR.sup.4, R.sup.5, R.sup.40 and R.sup.41 are various organic radicals.

Abstract: 5-Halogenoalkyl-1,3,4-thiadiazol-2-yloxyacetamides of the formula ##STR1## in which R.sup.1 is halogenoalkyl, with the exception of trifluoromethyl, andR.sup.2 and R.sup.3 each independently is hydrogen, alkyl, alkenyl, alkinyl, in each case optionally substituted cycloalkyl or cycloalkenyl, halogenoalkyl, alkoxyalkyl, alkoxyalkylenoxy, alkoxy, aralkyl or optionally substituted aryl, orR.sup.2 and R.sup.3, together with the nitrogen atom to which they are bonded, form an optionally substituted heterocyclic radical which can contain further hetero-atoms,which possess herbicidal and fungicidal activity. The intermediates 5-chlorodifluoromethyl- and 5-dichlorofluoromethyl-2-chloro-1,3,4-thiadiazole are also new.

Abstract: The invention relates to new 1-(2-oxyaminocarbonylphenylsulphonyl)-3-heteroaryl-ureas of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl and aralkyl andR.sup.3 represents an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation, and their use as herbicides.

Abstract: The invention relates to new benzodisultams of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkemyl, alkinyl and aralkyl, andR.sup.3 represents an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation and their use as herbicides.

Abstract: The invention relates to new 1-(2-oxyaminosulphonylphenylsulphonyl)-3-heteroaryl-ureas of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl and aralkyl andR.sup.