Abstract: The present invention relates to a process for preparing a quaternary ammonium compound, which comprises reacting an amine compound containing at least one sp3-hybridized nitrogen atom with a dialkyl sulfate at ambient pressure with participation of both alkyl groups of the dialkyl sulfate and, if appropriate, subjecting the resulting quaternary ammonium compound containing sulfate anions to an anion exchange.

Abstract: In a continuous process for the preparation of alkyl nitrites and dinitrites, an alkanol or dialkanol is first mixed with an aqueous mineral acid, the reaction mixture obtained is then reacted with an inorganic nitrite and the product obtained can then be isolated immediately.

Abstract: Tricyclic benzoylpyrazole derivatives of the formula I where: X is oxygen, sulfur, S?O, S(?O)2, CR6R7, NR8 or a bond; Y together with the two carbons to which it is attached forms a saturated, partially saturated or unsaturated 5- or 6-membered heterocycle; R1, R2, R6, R7 are hydrogen, alkyl, haloalkyl, alkoxy or haloalkoxy; R3 is halogen, alkyl, haloalkyl, alkoxy or haloalkoxy; R4 is hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, unsubstituted or substituted aminosulfonyl or unsubstituted or substituted sulfonylamino; R5 is hydrogen, alkyl or halogen; l is 0, 1 or 2; R8 is hydrogen, alkyl, haloalkyl, alkylcarbonyl, formyl, alkoxycarbonyl, haloalkoxycarbonyl, alkylsulfonyl or haloalkylsulfonyl; R9 is substituted pyrazol-4-ylcarbonyl or substituted 5-oxopyrazolin-4-ylmethylidene; and their agriculturally useful salts; processes and intermediates for preparing the tricyclic benzoylpyr

Abstract: The invention relates to 3-(4,5-dihydroisoxazole-5-yl)benzoylpyrazole of the formula (I) wherein the variables are as defined herein. The invention also relates to the agriculturally useful salts thereof, to methods and to intermediate products for preparing the 3-(4,5-dihydroisoxazole-5-yl)benzoylpyrazole, to agents containing them and to the use thereof for combating undesired plants.

Abstract: Tricyclic benzoylpyrazole derivatives of the formula I wherein X, Y, R1, R2, R6, R7, R3, R4, R5, l, R8 and R9 are as defined in the disclosure and their agriculturally useful salts; processes and intermediates for preparing the tricyclic benzoylpyrazole derivatives; compositions comprising them and the use of these derivatives or of the compositions comprising them for controlling undesirable plants are described.

Abstract: Cyclohexenone derivatives of benzazolones of the formula I where the variables R1, R2, R3, A and Hex are as defined in claim 1, and their salts, and their use for controlling harmful plants, are described.

Abstract: The invention relates to a method for producing ?-ketoenol esters of the general formula (Ia) or (Ib), wherein Ar, Ra and Rb are defined as in claim 1.

Abstract: The invention relates to 3-(heterocyclyl)-substituted benzoylpyrazois of formula (I), wherein the variables have the following meanings: X is O, NH or N-alkyl; R1 is alkyl; R2, R3, R4, R5 are hydrogen, alkyl or alkyl halide; R6 is halogen, nitro, alkyl halide, alkoxy, halogenalkoxy, alkylthio, halogenalkylthio, alkylsulfonyl or halogenalkylsulfonyl; R7 is hydroxy, alkoxy, alkenyloxy, alkylsulfonyloxy, alkylcarboyloxy, alkylthiocarbonyloxy, phenylsulfonyloxy or phenylcarbonyloxy, and the phenyl radical can be substituted; R8, R9 are alkyl; R10 is hydrogen or alkyl; and R11 is hydrogen or alkyl; and to their agriculturally useable salts. The invention also relates to intermediate products and methods for producing the inventive compounds and to the use of these compounds or products containing them for combating undesirable plants.

Abstract: A process for preparing bicyclic 1,3-diketones of the formula I where R1, R2, R3 and R4 are hydrogen, C1-C4-alkyl, C1-C4-alkoxy-carbonyl, halogen, cyano, nitro, C1-C4-alkylthio, C1-C4-alkylsulfenyl or C1-C4-alkylsulfonyl and Z is C1-C4-alkylene, O, S, N—R5 where R5 is C1-C4-alkyl or C1-C4-alkylcarbonyl, which comprises a) reacting a bicyclic olefin of the formula II with haloform in the presence of a base to give the ring-expanded product of the formula III  where R1-R4 and Z are as defined above and X is halogen; b) hydrolyzing the allylic halogen of the compound of the formula III to the allyl alcohol of the formula IV c) oxidizing the allyl alcohol of the formula IV to the unsaturated ketone of the formula V d) reacting the ketone of the formula V with a nucleophilic ion Y− which stabilizes a negative charge to give the ketone of the formula VI e) hydrolyzing the ketone of the formula VI to th

Abstract: In a continuous process for the preparation of alkylnitrites and dinitrites, an alkanol or dialkanol is first mixed with an aqueous mineral acid, the reaction mixture obtained is then reacted with an inorganic nitrite and the product obtained can then be isolated immediately.

Abstract: Cyclohexenone derivatives of benzazolones of the formula I 1

Abstract: The present invention relates to 1-cycloalkylpyrazolylbenzoyl derivatives of the formula I wherein all variables are as defined in the specification, their agriculturally useful salts, processes for their preparation, and for the use of these compounds or compositions comprising them, for controlling undesirable plants.

Abstract: Pyrazolylbenzazolones of the formula I 1

Abstract: 3-(4,5-Dihydroisoxazol-3-yl)-substituted benzoylcyclohexenone derivatives of the formula I in which the substituents A and R1 to R12 are as defined in the description and their agriculturally useful salts are described. The compounds have herbicidal action.

Abstract: 3-(4,5-Dihydroisoxazol-5-yl)benzoylcyclohexenones of the formula I in which 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 is hydrogen or alkyl; R5, R6 are hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl, benzyl or carbonyl, it being possible for the 7 last-mentioned radicals to be substituted; R11 is unsubstituted or substituted cyclohexenone which is linked in position 2 and has attached to it in position 1 a hydroxyl radical or derivatives thereof; and their agriculturally useful salts, processes for the preparation of the 3-(4,5-dihydroisoxazol-5-yl)benzoylcyclohexenones, compositions comprising them, and the use of these derivatives or of compositions comprising them for controlling undesired plants.

Abstract: The invention relates to 3-(4,5-dihydroisoxazole-5-yl)benzoylcyclohexenones of the general formula (I), wherein the variables have the following meanings: R1, R2 represents hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkysulfonyl or C1-C6 haloalkylsulfonyl; R3 represents hydrogen, halogen or alkyl; R4 represents hydrogen or alkyl; R5, R6 represents hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl, benzyl or carbonyl, wherein the 7 last residues can be substituted; R11 represents optionally substituted cyclohexenone that is linked in the 2 position and that carries a hydroxy residue or derivatives thereof in the 1 position.

Abstract: The invention relates to a method for producing &bgr; ketoenol esters of the general formula (Ia) or (Ib), wherein Ar, Ra and Rb are defined as in claim 1. The inventive method is characterized by reacting an arylhalogenide of the general formula (II) with a 1,3-diketone of the general formula (III) or the tautomers thereof in a carbon monoxide atmosphere in the presence of an alkali and a catalyst that contains at least one transition metal of group VIII of the periodic system.

Abstract: A process for preparing bicyclic 1,3-diketones of the formula I 1

Abstract: Cyclopropyl-fused 3-(4,5-dihydroisoxazol-3-yl)-substituted benzoylpyrazoles of the formula I in which the variables are as defined in the description, and their agriculturally useful salts are described. The compounds have herbicidal action.

Abstract: Phosphorus-containing benzoyl derivatives of the formula I where: P(═X)R1R2X is an organic phosphorus radical; R3 is hydrogen, nitro, cyano, halogen, unsub. or sub. alkyl, alkylcarbonyl, alkoxycarbonyl, unsub. or sub. alkoxy, unsub. or sub. alkylthio, unsub. or sub. alkylsulfinyl, unsub. or sub. alkylsulfonyl, unsub. or sub. aminosulfonyl, unsub. or sub. amino, P(═X)R1R2, unsub. or sub. phenyl or unsub. or sub. heterocyclyl; R4 is nitro, cyano, halogen, alkyl, alkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl; l is 0, 1 or 2; Q is unsub. or sub. 1-hydroxy-3-oxocyclohex-1-en-2-yl, unsub. or sub. 5-hydroxypyrazol-4-yl, unsub. or sub. isoxazol-4-yl or unsub. or sub. 2-cyano-1-oxoeth-2-yl; and their agriculturally useful salts; processes and intermediates for preparing the phosphorus-containing benzoyl derivatives; compositions comprising them and the use of these derivatives or the compositions comprising them for controlling undesirable plants are described.