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    57.
    发明专利
    未知

    公开(公告)号：DD215529A5

    公开(公告)日：1984-11-14

    申请号：DD26221584

    申请日：1984-04-23

    Applicant: BASF AG

    Inventor： REISSENWEBER GERNOT ,  RICHARZ WINFRIED

    IPC: C07B37/10 ,  C07B41/06 ,  C07C45/00 ,  C07C45/45 ,  C07C45/48 ,  C07C45/65 ,  C07C45/67 ,  C07C45/68 ,  C07C49/403 ,  C07C49/613 ,  C07C49/647 ,  C07C49/703 ,  C07C49/713 ,  C07C49/723 ,  C07C49/743 ,  C07C49/747 ,  C07C67/00 ,  C07C67/347 ,  C07C69/757 ,  C07C313/00 ,  C07C323/22 ,  C07C401/00 ,  C07C403/16 ,  C07D213/46 ,  C07D213/50 ,  C07D309/06 ,  C07D309/22 ,  C07D335/02 ,  C07C149/26

    Abstract: 1. A process for the preparation of cyclohexanedione derivatives of the general formula see diagramm : EP0124041,P7,F1 where R**1 means one of the following substituents : C2 -C8 -alkyl, C2 -C8 -alkenyl, C3 -C12 -cycloalkyl, C5 -C12 -cycloalkyl with 0-4 olefinically unsaturated bonds, C2 -C8 -alkylthioalkyl, C6 -C12 -bicycloalkyl with 0-3 olefinically unsaturated bonds, unsubstituted or substituted aryl or hetaryl, or a heterocyclic radical of 4 to 7 atoms of which not more than 3 may be hetero-atoms selected from the group consisting of O, S and N, the radical being saturated or olefinically unsaturated, by reaction of an alpha,beta-unsaturated ketone of the formula II see diagramm : EP0124041,P7,F2 with a dialkyl malonate in the presence of a base to give the alkoxycarbonylcyclohexenolone or its salt (III) see diagramm : EP0124041,P7,F3 and acylation, hydrolysis and decarboxylation of (III), R being the alcohol radical of the malonate and R**1 having the above meanings, wherein 1. the alpha,beta-unsaturated ketone (II) is reacted, in the presence of a base, with the dialkyl malonate in a solvent from which the alcohol liberated from the malonate can be distilled off, 2. the alcohol is distilled off, where appropriate as an azeotrope, 3. the salt of the alkoxycarbonylcyclohexenolone is reacted with a carboxylic acid halide R**2 COHal, where R**2 is alkyl of up to 6 carbon atoms, 4. the product, where appropriate after removal of excess acyl halide, is treated with an acylation catalyst, and 5. this product is hydrolyzed and decarboxylated.

    PROCESS FOR PRODUCING PIRASOLE DERIVATIVES OF HIGH PURITY FROM ROW PRODUCT
    60.
    发明专利
    PROCESS FOR PRODUCING PIRASOLE DERIVATIVES OF HIGH PURITY FROM ROW PRODUCT 未知

    公开(公告)号：HU178450B

    公开(公告)日：1982-05-28

    申请号：HUBA003885

    申请日：1979-11-14

    Applicant: BASF AG

    Inventor： LINHART FRIEDRICH ,  EICKEN KARL ,  GIGENSOHN BJOERN ,  RICHARZ WINFRIED

    IPC: C07D231/12 ,  C07D231/14 ,  C07D231/18 ,  C07D231/20 ,  C07D521/00

    Abstract: 1. A process for the preparation of substantially pure pyrazole compounds of the general formula see diagramm : EP0012216,P9,F1 where R is hydrogen, halogen, alkyl of up to 5 carbon atoms, alkoxy of up to 3 carbon atoms, perhaloalkyl of up to 3 carbon atoms or alkoxyalkyl of up to 5 carbon atoms, R**1 is hydrogen, halogen, alkyl of up to 5 carbon atoms, alkoxy of up to 3 carbon atoms, perhaloalkyl of up to 3 carbon atoms or alkoxyalkyl of up to 5 carbon atoms, R**2 is hydrogen, halogen, alkyl of up to 5 carbon atoms, alkoxy of up to 3 carbon atoms, perhaloalkyl of up to 3 carbon atoms or alkoxyalkyl of up to 5 carbon atoms, or R**2 together with R is an ortholinked alkylene chain of up to 6 carbon atoms which is unsubstituted or substituted by alkyl of up to 4 carbon atoms, X is chlorine or bromine, and R**3 and R**4 are identical or different and each is hydrogen, alkyl, alkoxy, alkylthio, carbalkoxy or perfluoroalkyl, in each case of up to 4 carbon atoms, or halogen, phenyl, cyano or carboxyl, from the corresponding crude products, characterized in that the crude products are treated with 30 to 90% by weight aqueous solutions of strong acids, thereafter the aqueous solution is separated off and diluted with water, and the pure product which hereupon precipitates is separated from the aqueous fluid.

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