METHOD FOR PRODUCING 1-SUBSTITUTED 5- OR 3-HYDROXYPYRAZOLES

    公开(公告)号:SK6792001A3

    公开(公告)日:2001-11-06

    申请号:SK6792001

    申请日:1999-11-06

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    METHOD FOR PRODUCING OXIME ETHERS
    85.
    发明专利

    公开(公告)号:CA2405763A1

    公开(公告)日:2001-10-18

    申请号:CA2405763

    申请日:2001-04-04

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing oxime ethers of formula (I), in which the substituents R1 and R2 can be identical or different and can respectively represent cyano, alkyl, haloalkyl, cycloalkyl, phenyl and naphthyl and R3 can represent alkyl, by the alkylation of oximes of the formula (II), under alkaline conditions, using an alkylation agent from the group containing alkyl halides, dialkyl sulfates and dialkyl carbonates. The reaction is carried out in a mixture consisting of between 5 and 25 wt.- % polar aprotic solvents, selected from the group containing nitriles, N- alkylpyrrolidones, cyclic urea derivatives, dimethylformamide and dimethylacetamide, between 55 and 95 wt.- % non-polar solvents, selected fro m the group containing aliphatic hydrocarbons, aromatic hydrocarbons, alkyl esters of alkyl carboxylic acid and ethers and between 0 and 25 wt.- % water , whereby the sum of said proportions amounts to 100 %.

    Method for producing chlorocarboxylic acid chlorides

    公开(公告)号:AU3741901A

    公开(公告)日:2001-09-12

    申请号:AU3741901

    申请日:2001-02-28

    Applicant: BASF AG

    Abstract: Production of chloroalkanoyl chlorides (I) with a (substituted) 1-10 carbon (hetero)alkylene chain, by reacting a lactone (II) with a chlorinating agent in the presence of a chlorination catalyst, is carried out in the presence of a boron compound. Production of chloroalkanoyl chlorides of formula (I) with a (substituted) 1-10 carbon (hetero)alkylene chain, by reacting a lactone of formula (II) with a chlorinating agent in the presence of a chlorination catalyst, is carried out in the presence of a boron compound. [Image] R1>, R2>H or R; R : halo, nitro, cyano or an organic group containing carbon; Y : optionally R-substituted 1-10 C alkylene, which may have a (thio)ether, tertiary amino or keto group in the chain; and R groups on Y, R1> and/or R2>can be linked to form a non-aromatic system.

    N-cycloalkyl-3-alkenylbenzoyl-pyrazole derivatives

    公开(公告)号:AU5978100A

    公开(公告)日:2001-01-30

    申请号:AU5978100

    申请日:2000-06-23

    Applicant: BASF AG

    Abstract: Cycloalkyl-substituted benzoylpyrazoles of the formula Iwhere the variables have, for example, the following meanings:R1 is hydrogen, nitro, halogen, cyano, thiocyanato, or an unsubstituted or substituted aliphatic radical;R2 is an unsubstituted or substituted aliphatic radical, halogen, nitro, or substituted sulfonyl or amino groups,R3 is hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C2-C6-alkenyl or C2-C6-alkynyl;R4, R5 are hydrogen, nitro, halogen, cyano, thiocyanato, an unsubstituted or substituted aliphatic radical or substituted sulfonyl or amino groups;R6 is hydrogen, halogen, C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl;R7 is a cyclic ring system having 3-14 ring atoms;R16 is hydroxyl or a substituted hydroxyl group;and their tautomers or agriculturally useful salts are described.Moreover, the invention describes processes for preparing compounds of the formula I, compositions comprising them, and the use of the compounds of the formula I and of the compositions comprising them for controlling harmful plants.

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