METHOD FOR PRODUCING 2-CHLOROMETHYLPHENYL ACETIC ACID DERIVATIVES

    公开(公告)号:AU2003215553A1

    公开(公告)日:2003-09-09

    申请号:AU2003215553

    申请日:2003-02-06

    Applicant: BASF AG

    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.

    METHOD FOR PRODUCING 2-CHLOROMETHYLPHENYL ACETIC ACID DERIVATIVES

    公开(公告)号:CA2476035A1

    公开(公告)日:2003-09-04

    申请号:CA2476035

    申请日:2003-02-06

    Applicant: BASF AG

    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 th e 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.

    METHOD FOR PRODUCING BICYCLIC 1,3-DIKETONES

    公开(公告)号:HU0300902A2

    公开(公告)日:2003-08-28

    申请号:HU0300902

    申请日:2001-07-04

    Applicant: BASF AG

    Abstract: A process for preparing bicyclic 1,3-diketones of the formula IwhereR , R , R and R are hydrogen, C1-C4-alkyl, C1-C4-alkoxy-carbonyl, halogen, cyano, nitro, C1-C4-alkylthio, C1-C4-alkylsulfenyl or C1-C4-alkylsulfonyl andZ is C1-C4-alkylene, O, S, N-R whereR is C1-C4-alkyl or C1-C4-alkylcarbonyl,which comprisesa) 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 IIIwhereR -R and Z are as defined above andX is halogen;b) hydrolyzing the allylic halogen of the compound of the formula III to the allyl alcohol of the formula IVc) oxidizing the allyl alcohol of the formula IV to the unsaturated ketone of the formula Vd) reacting the ketone of the formula V with a nucleophilic ion Y which stabilizes a negative charge to give the ketone of the formula VIe) hydrolyzing the ketone of the formula VI to the bicyclic 1,3-diketone of the formula I,novel intermediates and novel processes for preparing these intermediates are described.

    Method for producing bicyclic 1,3-diketones

    公开(公告)号:SK72003A3

    公开(公告)日:2003-07-01

    申请号:SK72003

    申请日:2001-07-04

    Applicant: BASF AG

    Abstract: A process for preparing bicyclic 1,3-diketones of the formula IwhereR , R , R and R are hydrogen, C1-C4-alkyl, C1-C4-alkoxy-carbonyl, halogen, cyano, nitro, C1-C4-alkylthio, C1-C4-alkylsulfenyl or C1-C4-alkylsulfonyl andZ is C1-C4-alkylene, O, S, N-R whereR is C1-C4-alkyl or C1-C4-alkylcarbonyl,which comprisesa) 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 IIIwhereR -R and Z are as defined above andX is halogen;b) hydrolyzing the allylic halogen of the compound of the formula III to the allyl alcohol of the formula IVc) oxidizing the allyl alcohol of the formula IV to the unsaturated ketone of the formula Vd) reacting the ketone of the formula V with a nucleophilic ion Y which stabilizes a negative charge to give the ketone of the formula VIe) hydrolyzing the ketone of the formula VI to the bicyclic 1,3-diketone of the formula I,novel intermediates and novel processes for preparing these intermediates are described.

    3-(4,5-DIHYDROISOXALOLE-5-YL)BENZOYLPYRAZOLE

    公开(公告)号:BG106784A

    公开(公告)日:2003-01-31

    申请号:BG10678402

    申请日:2002-06-06

    Applicant: BASF AG

    Abstract: The invention relates to 3-(4,5-dihydroisoxalole-5-yl)benzoylpyrazole of the formula therein the variables have the following meanings: R1, R2 represent hydrogen, nitro, halogen, cyano, alkyl, halogenalkyl, alkoxy, halogenalkoxy, alkylthio, halogen alkylthio, alkylsulfinyl, halogenalkylsulfinyl, alkylsulfonyl or halogenalkylsulfonyl; hydrogen, R3 represents halogen or alkyl; R4 represents hydrogen or alkyl; R5, R6 represent hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl or carbonyl, wherein the latter six groups can be substituted; R7 represents halogen, cyano, hydroxy, alkyl, halogenalkyl, alkoxy, halogenalkoxyalkylthio, halogenalkylthio, alkylsulfinyl, halogenalkylsulfinyl, alkylsulfonyl, halogenalkylsulfonyl, amino, alkylamino, dialkylamino, dialkoxymethyl, hydroxyiminoalkyl, alkoxyiminoalkyl or optionally substituted carbonyl; R11 represents optionally substituted pyrazole that is bound in the 4 position and carries a hydroxy group or a derivative thereof in the 5 position. The invention also relates to the agriculturally useful salts thereof, to methods and to intermediate products for preparing the 3-(4,5-dihydroisoxalole-5-yl)benzoylpyrazole, to agents containing them and to the use of said derivatives or the agents containing them for combatting undesired plants. 17 claims

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