Production of N-aryl carbamates and N-aryl isocyanates
    2.
    发明授权
    Production of N-aryl carbamates and N-aryl isocyanates 失效
    N-芳基氨基甲酸酯和N-芳基异氰酸酯的制备

    公开(公告)号:US08076500B2

    公开(公告)日:2011-12-13

    申请号:US11921972

    申请日:2006-06-09

    摘要: A method for the production of N-aryl carbamates (urethanes) and N-aryl isocyanates is described in which aromatic nitro compounds are subjected to a reductive carbonylation in the presence of carbon monoxide and organic compounds carrying hydroxyl groups, wherein the carbonylation is carried out in the presence of metal complex catalysts, for which anionic N,O chelate ligands of the general type [M(N˜O)−2] and [M(O˜N˜N˜O)2−] containing a bi- or trivalent transition metal of the groups 5 to 11 are used.

    摘要翻译: 描述了制备N-芳基氨基甲酸酯(氨基甲酸酯)和N-芳基异氰酸酯的方法,其中芳族硝基化合物在一氧化碳和携带羟基的有机化合物的存在下进行还原羰基化,其中进行羰基化 在金属络合物催化剂的存在下,通式[M(N-O)-2]和[M(O-N〜N-O)2-])的阴离子N,O螯合配体含有双 使用组5至11的三价过渡金属。

    Production of N-aryl Carbamates and N-aryl Isocyanates
    3.
    发明申请
    Production of N-aryl Carbamates and N-aryl Isocyanates 失效
    N-芳基氨基甲酸酯和N-芳基异氰酸酯的生产

    公开(公告)号:US20100217029A1

    公开(公告)日:2010-08-26

    申请号:US11921972

    申请日:2006-06-09

    IPC分类号: C07C263/14 C07C269/00

    摘要: The invention relates to a method for producing N-aryl carbamates (urethanes) and N-aryl isocyanates. According to said method, aromatic nitro compounds are subjected to a reductive carbonylation in the presence of carbon dioxide and organic compounds that bear hydroxyl groups and the carbonylation is carried out in the presence of metal complexing catalysts. Anionic N,O-chelate ligands of the general formulae [M(N˜O)−2] and [M(O˜N˜N˜O)2−], containing a divalent or trivalent transition metal of groups 5-11 are used for the catalysts.

    摘要翻译: 本发明涉及生产N-芳基氨基甲酸酯(氨基甲酸酯)和N-芳基异氰酸酯的方法。 根据所述方法,芳族硝基化合物在二氧化碳和具有羟基的有机化合物的存在下进行还原羰基化,羰基化在金属络合催化剂存在下进行。 含有5-11的二价或三价过渡金属的通式[M(N-O)-2]和[M(O〜N〜N-O)2-]]的阴离子N,O-螯合配体是 用于催化剂。