133.
    发明专利
    未知

    公开(公告)号:NO20026201L

    公开(公告)日:2002-12-23

    申请号:NO20026201

    申请日:2002-12-23

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing 4-bromine-aniline derivatives of formula (I), wherein the substituents have the following meanings: R : C1-C6-alkyl, C1-C6-halogenalkyl, C1-C6-alkoxy, C1-C6-halogen-alkoxy, C3-C8-cycloalkyl, halogen; R : C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl, C2-C6-alkenyl, cyano or a heterocyclic radical.

    134.
    发明专利
    未知

    公开(公告)号:PT888261E

    公开(公告)日:2002-05-31

    申请号:PT97907075

    申请日:1997-03-06

    Applicant: BASF AG

    Abstract: The invention concerns a process for preparing nitrobiphenylene of formula (I) wherein m stands for 1 or 2, R means halogen, R' or OR', R' being a C-organic group which can carry groups which are inert in the reaction conditions, n stands for 0, 1, 2 or 3 and, if n is 2 or 3, the R groups can also be different. According to the invention, a chloronitrobenzene of formula (II) is reacted in the presence of a palladium catalyst and a base in a solvent with a phenyl boric acid (IIIa), one of its alkyl esters of formula (IIIb), R meaning C1-C6 alkyl, or one of its anhydrides. The compounds (I) are suitable as initial products for biphenylamines which are in turn intermediate products for fungicidal plant-growth substances.

    136.
    发明专利
    未知

    公开(公告)号:DK0888261T3

    公开(公告)日:2002-02-11

    申请号:DK97907075

    申请日:1997-03-06

    Applicant: BASF AG

    Abstract: The invention concerns a process for preparing nitrobiphenylene of formula (I) wherein m stands for 1 or 2, R means halogen, R' or OR', R' being a C-organic group which can carry groups which are inert in the reaction conditions, n stands for 0, 1, 2 or 3 and, if n is 2 or 3, the R groups can also be different. According to the invention, a chloronitrobenzene of formula (II) is reacted in the presence of a palladium catalyst and a base in a solvent with a phenyl boric acid (IIIa), one of its alkyl esters of formula (IIIb), R meaning C1-C6 alkyl, or one of its anhydrides. The compounds (I) are suitable as initial products for biphenylamines which are in turn intermediate products for fungicidal plant-growth substances.

Patent Agency Ranking