PROCESS FOR PREPARING N-SUBSTITUTED 3-HYDROXYPYRAZOLES

    公开(公告)号:CZ7498A3

    公开(公告)日:1998-09-16

    申请号:CZ7498

    申请日:1996-07-02

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/02891 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/03969 PCT Pub. Date Feb. 6, 1997N-substituted 3-hydroxypyrazoles of the formula I where R1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R2, R3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

    17.
    发明专利
    未知

    公开(公告)号:ES2114113T3

    公开(公告)日:1998-05-16

    申请号:ES94117400

    申请日:1994-11-04

    Applicant: BASF AG

    Abstract: p-Hydroxyaniline derivatives of the formula I in which the substituents have the following meanings: R is hydrogen or optionally substituted alkyl; R and R independently of one another are halogen, alkyl, haloalkyl, alkoxy and haloalkoxy; R is optionally substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl, OR or NR R , where R and R are optionally substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl and R is hydrogen or alkyl, and salts thereof, their preparation, compositions comprising them, and their use as fungicides or pesticides; furthermore compounds of the formula VI and salts thereof, processes for their preparation, compositions comprising them, and their use as intermediates and as pesticides.

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