26.
    发明专利
    未知

    公开(公告)号:DE3874565D1

    公开(公告)日:1992-10-22

    申请号:DE3874565

    申请日:1988-01-07

    Inventor: NONN ALAIN

    Abstract: A process for the production of a hydroxybiphenyl by the hydrolysis of a bromobiphenyl, at a temperature below 300 DEG C., in the presence of both a copper-based catalyst and a separate cocatalyst selected from amongst halides, phosphates, nitrates, alcoholates, silicates, alcohols, carboxylic acids, sulfonic acids, organic sulfur-containing compounds, carbon monoxide, quinolines, tertiary amines, ammoniums, phosphines, phosphoniums, cyanides and palladium.

    28.
    发明专利
    未知

    公开(公告)号:DE68901217D1

    公开(公告)日:1992-05-21

    申请号:DE68901217

    申请日:1989-06-21

    Inventor: NONN ALAIN

    Abstract: The invention relates to a process for the bromination of biphenyl especially for the preparation of 4-bromobiphenyl or of 4,4'-dibromobiphenyl. According to the invention, biphenyl is reacted with BrCl.

    29.
    发明专利
    未知

    公开(公告)号:FR2633286B1

    公开(公告)日:1991-08-02

    申请号:FR8808583

    申请日:1988-06-27

    Inventor: NONN ALAIN

    Abstract: The invention relates to a process for the bromination of biphenyl especially for the preparation of 4-bromobiphenyl or of 4,4'-dibromobiphenyl. According to the invention, biphenyl is reacted with BrCl.

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