Abstract: A plant growth regulating compound of the formula ##STR1## in which R.sup.2 is an optionally substituted nitrogen heterocyclic radical,R.sup.3 is hydrogen, alkyl, cycloalkyl, alkenyl, alkinyl or aralkyl, andR.sup.4 is hydrogen, or if R.sup.3 is not hydrogen R.sup.4 may be hydroxyl or a variety of radicals, orR.sup.3 and R.sup.4 together may form a ring,or an acid adduct thereof.

Abstract: Herbicidal 1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen or nitro,R.sup.2 represents hydrogen or alkyl,R.sup.3 and R.sup.4 independently of one another each represent alkyl, halogenoalkyl or optionally substituted aryl,Ar represents optionally substituted phenyl or optionally substituted pyridyl,x represents a number 0 or 1 andy represents a number 0 or 1.

Abstract: Herbicidally active 2,4-diamino-6-haloalkylpyrimidines of the formula ##STR1## in which R.sup.1 and R.sup.3, independently of one another, represent hydrogen or alkyl,R.sup.2 and R.sup.4, independently of one another, represent hydrogen, alkyl which is optionally substituted by halogen, cyano, alkoxy, alkylthio or by cyclopropyl, represent cycloalkyl, alkenyl which is optionally substituted by halogen, or alkinyl, andR.sup.5 represents alkyl which is substituted by halogen, with the proviso that R.sup.1, R.sup.2, R.sup.3 andR.sup.4 do not simultaneously represent hydrogen whenR.sup.5 represents trichloromethyl, and with the provisio that R.sup.1 and R.sup.2 do not simultaneously represent hydrogen when R.sup.4 represents alkyl which is substituted by alkoxy or alkylthio.

Abstract: Herbicidal substituted triazines of the formula ##STR1## in which A.sup.1 represents optionally branched and optionally aryl-substituted alkanediyl,A.sup.2 represents optionally branched alkanediyl,Q represents oxygen, sulphur, NH or N-alkyl,R.sup.1 represents hydrogen, hydroxyl, nitro, cyano, cyanoamino, azido, halogen, alkoxy, alkylthio (which is optionally substituted by halogen or cyano), alkyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, amino, alkylamino or dialkylamino,R.sup.2 represents hydrogen, alkyl, alkenyl or alkinyl,R.sup.3 represents optionally substituted aryl or heteroaryl,R.sup.4 represents hydrogen, alkyl, alkenyl or alkinyl andR.sup.5 represents hydrogen or alkyl.

Abstract: A method of combating unwanted vegetation which comprises applying to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of an alkoximinoalkylamide of the formula ##STR1## in which R represents hydrogen or alkyl,R.sup.1 represents hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, phenyl, phenoxy, formyl, alkoxycarbonyl, alkanoyl or alkoximinoalkyl andR.sup.2 represents halogen, cyano, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, phenyl phenoxy, formyl, alkoxycarbonyl, alkanoyl or alkoximinoalkyl.

Abstract: New pyri(mi)dyl-oxy- or -thio-benzoic acid derivatives of the formula ##STR1## are taught which have herbicidal and plant growth regulating activity. In the formula Z can be Ch or N, X is oxygen or sulphur, A is oxygen, sulphur, a radical R.sup.5 --N.dbd.or a radical R.sup.6 O--N.dbd.and B is oxygen, sulphur, a radical ##STR2## with the proviso that at least one of the radicals R.sup.1, R.sup.2 or R.sup.3 represents alkyl or a part of a 3- to 6-membered fused carbocyclic ring.

Abstract: Herbicidally active compounds of the formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,R.sup.2 represents hydrogen or alkyl,with the proviso that R.sup.1 and R.sup.2 do not simultaneously represent hydrogen,X represents oxygen or sulphur,R.sup.3 represents hydrogen, halogen, nitro, amino, cyano, alkyl, halogenoalkyl, alkoxy or halogenoalkoxy,wherein the radicals R.sup.3 can be identical or different,n represents a number from 1-4,U represents oxygen or sulphur,V represents a ##STR2## group, R.sup.4 and R.sup.5 independently of one another repreesnt hydrogen, alkyl, alkoxyalkyl or halogenoalkyl,W represents a radical ##STR3## D represents carbon or silicon, E represents oxygen or sulphur, andR.sup.6 through R.sup.12 can have various meanings.The starting materials wherein -U-V-W together are OH are also new.

Abstract: Novel herbicides of the formula ##STR1## in which R.sup.1 represents alkyl,R.sup.2 represents hydrogen, alkyl, alkylcarbonyl, alkoxycarbonyl, alkylsulphonyl, alkenyl, alkinyl or optionally substituted aralkyl, andR.sup.3 represents optionally substituted aryl.Intermediates of the formula ##STR2## in which R.sup.6 is hydrogen, chlorine or hydroxyl,are also new.

Abstract: An imidazo-pyrrolo-pyridine compound of the formula (I), ##STR1## in which R.sup.1 and R.sup.2, independently of one another, represent alkyl, or together represent a doubly linked alkylene radical,x represents hydrogen, halogen or alkyl,y represents hydrogen, halogen, cyano, alkyl, optionally substituted aryl, alkylsulphonyl, dialkoxyphosphoryl or a ##STR2## radical, and z represents cyano, nitro or a ##STR3## radical, whereR.sup.3 represents alkyl, alkoxy, cycloalkyl, amino or alkoxycarbonyl. The compound is useful as a herbicide.

Abstract: Herbicidally active compounds of the formula ##STR1## in which R.sup.1 represents halogen, cyano or C.sub.1 -C.sub.6 -alkyl (which is optionally substituted by fluorine, chlorine, bromine, cyano, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -cycloalkyl or phenyl), or represents C.sub.1 -C.sub.4 -alkoxy (which is optionally substituted by chlorine, bromine, cyano or C.sub.1 -C.sub.4 -alkoxy),R.sup.2 represents optionally substituted aryl,R.sup.3 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.6 -alkylamino or di-(C.sub.1 -C.sub.6 -alkyl)-amino, or represents optionally substituted C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio, andR.sup.4 represents hydrogen, halogen or hydroxyl, or represents optionally substituted C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio, or represents C.sub.1 -C.sub.6 -alkylamino or di-(C.sub.1 -C.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 plant growth regulating compound of the formula ##STR1## in which R.sup.2 is an optionally substituted nitrogen heterocyclic radical,R.sup.3 is hydrogen, alkyl, cycloalkyl, alkenyl, alkinyl or aralkyl, andR.sup.4 is hydrogen, or if R.sup.3 is not hydrogen R.sup.4 may be hydroxyl or a variety of radicals, orR.sup.3 and R.sup.4 together may form a ring,or an acid adduct thereof.

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 3-amino-2-cyano-acrylic acid esters of the formula ##STR1## in which R.sup.1 represents alkoxyalkyl or benzyloxyalkylR.sup.2 represents alkyl or alkenyl,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents hydrogen, or represents alkyl which is optionally substituted by hydroxyl, halogen, alkoxy or dialkylamino,X.sup.1 and X.sup.2 are identical or different and represent hydrogen, halogen, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, amino, alkylamino, alkylcarbonylamino, N-alkylcarbonyl-N-alkylamino, dialkylaminocarbonylamino or in each case optionally substituted aryl or aryloxy, orX.sup.1 and X.sup.2 together with the adjacent phenyl radical represent naphthyl andm represents the number 0, 1, 2, 3, 4 or 5.Intermediates of the formula ##STR2## are also new.

Abstract: Novel substituted carboxylic acid amide herbicides of the formula ##STR1## wherein n is an integer from 1 to 4each R is independently selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, amino, alkylamino, dialkylamino, nitro cyano and alkoxycarbonyl; and two R radicals taken together can represent methylenedioxy, dichloromethylenedioxy or difluoromethylenedioxy,R.sup.1 is hydrogen or alkyl,R.sup.2 and R.sup.3 are individually selected from hydrogen or a radical selected from alkyl, alkenyl, alkynyl, aralkyl, cycloalkyl, aryl and nitrogen-containing heterocycles, each of which radicals may be substituted and each of which radicals may, together with the nitrogen atom to which they are attached, form an optionally substituted, optionally partially unsaturated and optionally benzo-fused monocyclic or bicyclic radical, which may contain one or more further hetero-atoms, andX is oxygen or sulfur.

Abstract: An O-aryl-N'-(triazin-2-yl)-isourea of the formula ##STR1## in which R.sup.1 represents the radical ##STR2## wherein R.sup.5 represents trifluoromethoxy, difluoromethoxy, phenyl, phenoxy, trifluoromethylthio, difluoromethylthio, di-(C.sub.1 -C.sub.4 -alkyl)-aminocarbonyl, C.sub.1 -C.sub.4 -alkylsulphonyl, C.sub.1 -C.sub.4 - alkoxyaminosulphonyl, N-(C.sub.1 -C.sub.4 -alkoxy)-N-(C.sub.1 -C.sub.4 -alkyl)-aminosulphonyl, C.sub.1 -C.sub.4 -alkylaminosulphonyl or di-(C.sub.1 -C.sub.4-alkyl)-aminosulphonyl,or whereinR.sup.1 represents the radical ##STR3## wherein R.sup.6 represents hydrogen or C.sub.1 -C.sub.4 -alkyl andR.sup.7 and R.sup.8 are identical or different and represent hydrogen, fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.4 -alkyl (which is optionally substituted by fluorine and /or chlorine), C.sub.1 -C.sub.4 -alkoxy (which is optionally substituted by fluorine and/or chlorine), carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylsulphonyl or di-(C.sub.1 -C.sub.

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: Herbicidal and plant growth-regulating novel 5-acylamino-pyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen or nitro,R.sup.2 represents hydrogen, alkyl, alkenyl, alkinyl or optionally substituted cycloalkyl,Ar represents in each case optionally substituted phenyl or pyridyl,X represents oxygen or sulphur,A represents a straight-chain or branched optionally substituted alkylene bridge,n represents the numbers 0 or 1 andY represents cyano or the grouping ##STR2## wherein X.sup.1 represents oxygen or sulphur andR.sup.3 represents hydroxyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, amino, alkylamino, dialkylamino, alkenylamino, dialkenylamino, alkyl-alkenylamino or a --OM radical,whereinM represents one equivalent of the cation of an inorganic or organic base.Intermediates therefor of the formula ##STR3## are also new.

Abstract: Herbicidal and plant growth-regulating compounds of the formula ##STR1## in which R.sup.1 represents hydrogen or nitro,R.sup.2 represents hydrogen, alkyl or a radical ##STR2## A.sup.1 and A.sup.2 independently of each other each represent a divalent alkylene radical,Y represents halogen, hydroxyl, optionally substituted alkoxy, optionally substituted aryloxy or a radical ##STR3## R.sup.3 represents hydrogen, alkyl, alkoxy, amino, alkylamino, dialkylamino or in each case optionally substituted aryl, aryloxy or arylamino,Ar represents in each case optionally substituted phenyl or pyridyl andn represents a number 1, 2, 3 or 4.

Abstract: Novel 1-aryl-4-nitro-pyrazoles which exhibit herbicidal and plant growth-regulating activity of the formula ##STR1## in which R.sup.1 represents in each case optionally substituted alkyl, alkenyl, alkinyl or cycloalkyl andR.sup.2 represents hydrogen, or represents in each case optionally substituted alkyl, alkenyl, alkinyl or cycloalkyl, or represents a radical ##STR2## or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are bonded, represent a saturated heterocyclic radical, which can optionally contain further hetero atoms, andAr represents in each case optionally substituted phenyl or pyridyl,whereinX represents oxygen or sulphur andR.sup.