43.
    发明专利
    未知

    公开(公告)号:ES2058959T3

    公开(公告)日:1994-11-01

    申请号:ES91103889

    申请日:1991-03-14

    Applicant: BASF AG

    Abstract: Preparation of isoxazole-4,5-dicarboxylic diesters of the general formula I in which R is any desired organic radical which is inert under the reaction conditions and in which R and R each represent an alkyl, cycloalkyl or benzyl group, characterised in that an aldoxime of the general formula II is reacted with a maleic or fumaric diester of the general formula III R OOC-C=C-COOR (III), in which R and R are identical or different and have the abovementioned meaning, in the presence of an aqueous solution of a hypohalite, in which the hypohalite is present in excess, relative to II.

    45.
    发明专利
    未知

    公开(公告)号:DE59102595D1

    公开(公告)日:1994-09-29

    申请号:DE59102595

    申请日:1991-03-14

    Applicant: BASF AG

    Abstract: Preparation of isoxazole-4,5-dicarboxylic diesters of the general formula I in which R is any desired organic radical which is inert under the reaction conditions and in which R and R each represent an alkyl, cycloalkyl or benzyl group, characterised in that an aldoxime of the general formula II is reacted with a maleic or fumaric diester of the general formula III R OOC-C=C-COOR (III), in which R and R are identical or different and have the abovementioned meaning, in the presence of an aqueous solution of a hypohalite, in which the hypohalite is present in excess, relative to II.

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