4.
    发明专利
    未知

    公开(公告)号:FR2609711B1

    公开(公告)日:1989-06-16

    申请号:FR8700824

    申请日:1987-01-21

    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.

    9.
    发明专利
    未知

    公开(公告)号:FR2633612A1

    公开(公告)日:1990-01-05

    申请号:FR8808725

    申请日:1988-06-29

    Inventor: NONN ALAIN

    Abstract: The present invention relates to a process for purifying 4,4'-dihydroxybiphenyl by acylation of the preparation mixture and selective precipitation of diacetylbiphenyl.

Patent Agency Ranking