Abstract: Benzoyl derivatives of the formula I where the variables have the following meanings: R1, R2 are hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or C1-C6-haloalkylsulfonyl; R3 is hydrogen, halogen or alkyl; R4, R5 are hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl or carbonyl, it being possible for the 6 last-mentioned radicals to be substituted; X is O, S, NR9, CO or CR10R11; Y is O, S, NR12, CO or CR13R14; R15 is pyrazole which is unsubstituted or substituted, linked in the 4-position and has attached to it in the 5-position a hydroxyl or sulfonyloxy radical; and the agriculturally useful salts thereof; processes and intermediates for the preparation of the 3-heterocyclyl-substituted benzoyl derivatives; compositions comprising them; and the use of these derivatives or compositions comprising them for controlling undesirable plants.

Abstract: The present invention relates to a crystalline form of 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1-(2H)pyrimidinyl]-4-fluoro-N-[[methyl(1-methylethyl)-amino]sulfonyl]benzamide. The invention also relates to a process for the preparation of this crystalline form and to plant protection formulations which comprise this crystalline form of the phenyluracil.

Abstract: The present invention relates to hydrates of 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1-(2H)pyrimidinyl]-4-fluoro-N-[[methyl(1-methylethyl)amino]-sulfonyl]benzamide. The invention also relates to a process for the preparation of these hydrates and to plant protection formulations which comprise hydrates of the phenyluracil I.

Abstract: A process for preparing sulfonamides I where the variables are each as defined in the description, by reacting m-nitrobenzoyl chlorides II with amino sulfones III, under the influence of B equivalents of base IV, wherein, in step a), the amino sulfone III is reacted with B1 equivalents of base IV, and, in step b), the reaction mixture resulting from step a) is reacted with m-nitrobenzoyl chlorides II and B2 equivalents of base IV; where B, B1 and B2 are each as defined in the description.

Abstract: The invention relates to methods for producing sulfonamides of formula I, wherein the variables have the designations cited in the description, by reacting m-nitro-benzoic acid chlorides of formula II with aminosulfons of formula III, under the influence of B equivalents of base IV. Said method is characterized in that, during step a) the aminosulfon of formula III is reacted with B1 equivalents of base IV, and during step b), the reaction mixture resulting from step a) is reacted with m-nitro-benzoic acid chlorides of formula II and B2 equivalents of base IV; B, B1 and B2 having the designations cited in the description.

Abstract: The present invention relates to a process for preparing 3-phenyl(thio)uracils and -dithiouracils of the formula I where the variables are each as defined in the description, and also intermediates for their preparation.

Abstract: The present invention relates to a process for preparing 3-phenyl(thio)uracils and -dithiouracils of the formula I where the variables are each as defined in the description, and also intermediates for their preparation.

Abstract: The present invention relates to a process for preparing 3-phenyl(thio)uracils and -dithiouracils of the formula I where the variables are each as defined in the description, and also intermediates for their preparation.

Abstract: The invention relates to methods for producing sulfonamides of formula I, wherein the variables have the designations cited in the description, by reacting m-nitro-benzoic acid chlorides of formula II with aminosulfons of formula III, under the influence of B equivalents of base IV. Said method is characterised in that, during step a) the aminosulfon of formula III is reacted with B1 equivalents of base IV, and during step b), the reaction mixture resulting from step a) is reacted with m-nitro-benzoic acid chlorides of formula II and B2 equivalents of base IV; B, B1 and B2 having the designations cited in the description.

Abstract: A process is described for preparing 3-phenyl(thio)uracils or 3-phenyldithiouracils of the formula I, by reacting a phenyl iso(thio)cyanate of the formula II with an enamine of the formula III and, if appropriate, in a further step, the resulting 3-phenyl(thio)uracil or 3-phenyldithiouracil of the formula I where R1=R1a, when R1=hydrogen, is reacted with an aminating agent of the formula IV to give 3-phenyl(thio)uracils or 3-phenyldithiouracils of the formula I where R1=amino where the variables R1, R1a, R2, R3, R4, X1, X2, X3, Ar, A and L1 are each as defined in claim 1.

Abstract: The present invention relates to a crystalline form of 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1-(2H)pyrimidinyl]-4-fluoro-N-[[methyl(1-methylethyl)-amino]sulfonyl]benzamide. The invention also relates to a process for the preparation of this crystalline form and to plant protection formulations which comprise this crystalline form of the phenyluracil.

Abstract: Process for the preparation of substituted pyridine derivatives of formula (I) comprising reaction of a ?-?-unsaturated carbonyl compound of formula (II) R3—C(O)—C(R1)?C(R2)-G with a Wittig reagent or Horner-Wadsworth-Emmons reagent in the presence of a base and optionally subsequent cyclization.

Abstract: The present invention relates to hydrates of 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1-(2H)pyrimidinyl]-4-fluoro-N-[[methyl(1-methylethyl)amino]-sulfonyl]benzamide. The invention also relates to a process for the preparation of these hydrates and to plant protection formulations which comprise hydrates of the phenyluracil I.

Abstract: Benzoyl derivatives of the formula I where the variables have the following meanings: R1, R2 are hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or C1-C6-haloalkylsulfonyl; R3 is hydrogen, halogen or alkyl; R4, R5 are hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl or carbonyl, it being possible for the 6 last-mentioned radicals to be substituted; X is O, S, NR9, CO or CR10R11; Y is O, S, NR12, CO or CR13R14; R15 is pyrazole which is unsubstituted or substituted, linked in the 4-position and has attached to it in the 5-position a hydroxyl or sulfonyloxy radical; and the agriculturally useful salts thereof; processes and intermediates for the preparation of the 3-heterocyclyl-substituted benzoyl derivatives; compositions comprising them; and the use of these derivatives or compositions comprising them for controlling undesirable plants.

Abstract: A process for preparing 2-(chloromethyl)phenylacetic acid derivatives of the formula I, where X is C1-C4-alkoxy or methylamino, by ether cleavage of compounds of the formula II, where R is C1-C4-alkyl, C1-C4-alkoxy, C1-C2-haloalkyl, C1-C4-alkylcarbonyl, C1-C4-alkylcarbonyloxy, halogen, nitro or cyano; n is 2 to 5; and X is as defined above comprises carrying out the reaction in the presence of hydrogen chloride and an inert solvent, and adding a catalyst to the reaction mixture selected from the group consisting of iron, indium and halides, oxides and triflates, thereof.

Abstract: 4-Trifluoromethyl-2(1H)-pyridinone is prepared by reaction of 4-alkoxy-1,1,1-trifluorobut-3-en-2-one or 4,4-dialkoxy-1,1,1-trifluorobutan-2-one with a trialkyl phosphonoacetate followed by cyclization.

Abstract: The invention relates to a method for producing 2-chloromethylphenyl acetic acid derivatives of formula (I), in which X represents C1-C4 alkoxy or methylamino, by cleaving the ether bonds in compounds of formula (II), in which R represents C1-C4 alkyl, C1-C4 alkoxy, C1-C2 alkyl halide, C1-C4 alkylcarbonyl, C1-C4 alkylcarbonyloxy, halogen, nitro or cyano, and X has the above-mentioned meaning. The inventive method is characterized in that the transformation takes place in the presence of hydrogen chloride and of an inert solvent, and in that a catalyst selected from the group comprised of: iron, indium or halogenides, oxides or triflates thereof is added to the reaction mixture.

Abstract: Benzoyl derivatives of the formula I where the variables have the following meanings: R1, R2 are hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or C1-C6-haloalkylsulfonyl; R3 is hydrogen, halogen or alkyl; R4, R5 are hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl or carbonyl, it being possible for the 6 last-mentioned radicals to be substituted; X is O, S, NR9, CO or CR10R11; Y is O, S, NR12, CO or CR13R14; R15 is pyrazole which is unsubstituted or substituted, linked in the 4-position and has attached to it in the 5-position a hydroxyl or sulfonyloxy radical; and the agriculturally useful salts thereof; processes and intermediates for the preparation of the 3-heterocyclyl-substituted benzoyl derivatives; compositions comprising them; and the use of these derivatives or compositions comprising them for controlling undesirable plants.

Abstract: The present invention relates to a process for preparing 3-phenyl(thio)uracils and -dithiouracils of the formula I where the variables are each as defined in the description, and also intermediates for their preparation.

Abstract: Process for the preparation of substituted pyridine derivatives of formula (I) comprising reaction of a ?-?-unsaturated carbonyl compound of formula (II) R3—C(O)—C(R1)?C(R2)-G ??(II) with a Wittig reagent or Horner-Wadsworth-Emmons reagent in the presence of a base and if subsequent cyclization.