PROCESS FOR PREPARING 1,3-DISUBSTITUTED PYRAZOLECARBOXYLIC ESTERS
    48.
    发明公开
    PROCESS FOR PREPARING 1,3-DISUBSTITUTED PYRAZOLECARBOXYLIC ESTERS 有权
    制备1,3-二取代的吡唑羧酸酯的方法

    公开(公告)号:EP2307384A1

    公开(公告)日:2011-04-13

    申请号:EP09780455.3

    申请日:2009-07-10

    Applicant: BASF SE

    CPC classification number: C07D233/90

    Abstract: A process for preparing 1,3-disubstituted pyrazolecarboxylic esters of the formula (I); where X, Y, Z = hydrogen or halogen and R
    1 = C
    1 -C
    6 -alkyl, by metering an enol ether of the formula (III); where R
    2 is C
    1 -C
    6 -alkyl at from (-41) to (-8O)°C into an alkyl hydrazine of the formula II H
    2 N-NH-lower alkyl (II).

    Abstract translation: 一种制备式(I)的1,3-二取代的吡唑羧酸酯的方法; 通过计量式(III)的烯醇醚,其中X,Y,Z =氢或卤素和R 1 = C 1 -C 6 - 烷基; 其中R 2是从(-41)至(-80)℃的C 1 -C 6烷基进入式II的H 2 N-NH-低级烷基(II)的烷基肼。

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