Method of producing biphenyltetracarboxylic esters
    2.
    发明授权
    Method of producing biphenyltetracarboxylic esters 失效
    联苯四羧酸酯的制备方法

    公开(公告)号:US4338456A

    公开(公告)日:1982-07-06

    申请号:US235744

    申请日:1981-02-18

    摘要: A biphenyltetracarboxylic tetraester, especially, 3,3',4,4'-biphenyltetracarboxylic tetraalkyl ester, is produced by bringing an orthophthalic diester, especially, orthophthalic dialkylester, into contact with a molecular oxygen-containing gas in the presence of a catalyst consisting of a mixture of a palladium salt with 2,2'-bipyridyl or a chelating reaction product of a palladium salt with 2,2'-bipyridyl, so as to promote oxidative coupling of the orthophthalic diester.

    摘要翻译: 联苯四羧酸四酯,特别是3,3',4,4'-联苯四羧酸四烷基酯是通过使邻苯二甲酸二酯,特别是邻苯二甲酸二烷基酯在含有分子氧的气体的存在下,在由 钯盐与2,2'-联吡啶的混合物或钯盐与2,2'-联吡啶的螯合反应产物,以促进邻苯二甲酸二酯的氧化偶联。

    Method of producing biphenyltetracarboxylic esters
    3.
    发明授权
    Method of producing biphenyltetracarboxylic esters 失效
    联苯四羧酸酯的制备方法

    公开(公告)号:US4292435A

    公开(公告)日:1981-09-29

    申请号:US151818

    申请日:1980-05-21

    摘要: A biphenyltetracarboxylic tetraester, especially, 3,3',4,4'-biphenyltetracarboxylic tetraalkyl ester, is produced by oxidative coupling an orthophthalic diester, especially, orthophthalic dialkylester, in a molecular oxygen-containing atmosphere in the presence of a catalyst consisting of a mixture of a palladium salt with 1,10-phenanthroline and/or 2,2'-bipyridyl or a chelating reaction product of a palladium salt with 1,10-phenanthroline or 2,2'-bipyridyl.

    摘要翻译: 联苯四羧酸四酯,特别是3,3',4,4'-联苯基四羧酸四烷基酯,是通过在含有分子氧的气氛中在邻苯二甲酸二酯,特别是邻苯二甲酸二烷基酯的存在下,在由 钯盐与1,10-菲咯啉和/或2,2'-联吡啶的混合物或钯盐与1,10-菲咯啉或2,2'-联吡啶的螯合反应产物。