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公开(公告)号:US4294976A
公开(公告)日:1981-10-13
申请号:US071089
申请日:1979-08-31
IPC分类号: C07C67/333 , C07B31/00 , C07B37/04 , C07C1/00 , C07C2/76 , C07C2/84 , C07C15/14 , C07C67/00 , C07C69/76 , C07C179/02
CPC分类号: C07C69/76
摘要: A biphenyl compound is produced from a corresponding aromatic monocyclic compound at a high yield thereof and a high percent selectivity thereto, by dehydrogenatively dimerizing the aromatic monocyclic compound with molecular oxygen in the presence of oxalic acid together with a organic palladium salt catalyst, under a pressure higher than the atmospheric pressure.
摘要翻译: 联苯化合物由相应的芳族单环化合物以高产率和高选择性产生,通过在有机钯盐催化剂的存在下,在芳族单环化合物与分子氧的存在下,在压力 高于大气压力。
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公开(公告)号:US4338456A
公开(公告)日:1982-07-06
申请号:US235744
申请日:1981-02-18
IPC分类号: B01J31/18 , B01J31/28 , C07C67/343
CPC分类号: B01J31/28 , B01J31/1815 , B01J2231/4205 , B01J2531/824
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。
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公开(公告)号:US4292435A
公开(公告)日:1981-09-29
申请号:US151818
申请日:1980-05-21
IPC分类号: B01J31/18 , B01J31/28 , C07C67/343
CPC分类号: B01J31/183 , B01J31/1815 , B01J31/28 , B01J2231/4205 , B01J2531/824
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。
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