METHOD FOR PRODUCTION OF BIS(HYDROXY-AROMATIC) COMPOUNDS
    11.
    发明申请
    METHOD FOR PRODUCTION OF BIS(HYDROXY-AROMATIC) COMPOUNDS 审中-公开
    生产BIS(羟基 - 芳香族)化合物的方法

    公开(公告)号:WO2005040080A1

    公开(公告)日:2005-05-06

    申请号:PCT/US2004/028276

    申请日:2004-08-31

    CPC classification number: C07C39/15 C07C37/18

    Abstract: Disclosed is a method for preparing a bis(hydroxy-aromatic) compound which comprises the steps of. contacting at least one hal o- substituted hydroxy-aromatic compound in a solvent mixture comprising water and at least one organic solvent in the presence of at least one base, at least one catalyst comprising palladium and hydrogen gas at a pressure in a range of between atmospheric pressure and 350 kilopascals.

    Abstract translation: 公开了一种制备双(羟基 - 芳族)化合物的方法,其包括以下步骤。 在包含水和至少一种有机溶剂的溶剂混合物中,在至少一种碱,至少一种包含钯和氢气的催化剂存在下,在至少一种碱的存在下,在至少一种有机溶剂的溶剂混合物中, 大气压力和350千帕斯卡。

    BROMINATION OF HYDROXYAROMATIC COMPOUNDS
    12.
    发明申请
    BROMINATION OF HYDROXYAROMATIC COMPOUNDS 审中-公开
    羟基化合物的挥发

    公开(公告)号:WO2005023738A1

    公开(公告)日:2005-03-17

    申请号:PCT/US2004/021992

    申请日:2004-07-09

    CPC classification number: C07B39/00 C07C37/62 C07C39/27

    Abstract: A method for brominating hydroxyaromatic compounds to form products, such as p­bromophenol, is disclosed. The method uses elemental bromine as the brominating agent and comprises contacting a hydroxyaromatic compound with bromine and oxygen in the presence of metal catalyst. Suitable catalysts include elemental copper, copper compounds, and compounds of Group IV-VIII transition metals.

    Abstract translation: 公开了用于溴化羟基芳族化合物以形成产物如溴苯酚的方法。 该方法使用元素溴作为溴化剂,并且包括在金属催化剂存在下使羟基芳族化合物与溴和氧接触。 合适的催化剂包括元素铜,铜化合物和IV-VIII族过渡金属的化合物。

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