Preparation of substituted aromatic amines
    3.
    发明授权
    Preparation of substituted aromatic amines 失效
    取代芳族胺的制备

    公开(公告)号:US06229035B1

    公开(公告)日:2001-05-08

    申请号:US09334252

    申请日:1999-06-16

    IPC分类号: C07F1502

    摘要: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of a preferred alkali metal pentacyano ferrate(II) complex made using water soluble ferrous salts with a non-oxidizing anion, preferably, ferrous sulfate, and containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.

    摘要翻译: 公开了一种用于生产芳族胺如N-苯基 - 对苯二胺的方法,其中胺取代的芳族化合物如苯胺在优选的碱金属五氰基高铁酸盐(II)络合物存在下用氧或过氧化氢氧化, 含有非氧化阴离子的亚铁盐,优选硫酸亚铁,并含有各种水溶性配体,如氨,单烷基胺,二烷基胺和三烷基胺。 随后通过使用某些多相金属催化剂的氢化催化还原该络合物,得到所需的芳族胺。

    Preparation of substituted aromatic amines
    7.
    发明授权
    Preparation of substituted aromatic amines 失效
    取代芳族胺的制备

    公开(公告)号:US5925790A

    公开(公告)日:1999-07-20

    申请号:US816612

    申请日:1997-03-13

    CPC分类号: C07C209/10

    摘要: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of a preferred trisodium pentacyano ferrate(II) complex containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.

    摘要翻译: 公开了一种生产芳香胺如N-苯基 - 对苯二胺的方法,其中胺取代的芳族化合物如苯胺在优选的含有各种水溶性配体的五氰基高铁酸三钠(II)络合物的存在下用氧或过氧化氢氧化 ,例如氨,单烷基胺,二烷基胺和三烷基胺。 随后通过使用某些多相金属催化剂的氢化催化还原该络合物,得到所需的芳族胺。

    Elastomers and tire with N-alkyl-p-quinonediimino triazine stabilizers
    9.
    发明授权
    Elastomers and tire with N-alkyl-p-quinonediimino triazine stabilizers 失效
    弹性体和具有N-烷基对醌二亚氨基三嗪稳定剂的轮胎

    公开(公告)号:US5208280A

    公开(公告)日:1993-05-04

    申请号:US890496

    申请日:1992-05-28

    申请人: Edward L. Wheeler

    发明人: Edward L. Wheeler

    IPC分类号: C07D251/70 C08K5/3492

    CPC分类号: C07D251/70 C08K5/34922

    摘要: Novel N-alkyl-p-quinonediimino triazine compounds are disclosed which are useful as antiozonants for unsaturated high polymers. The compound may be prepared by oxidizing a 2,4,6-tris(N-alkyl-p-phenylenediamino) 1,3,5-triazine with a neutral or basic oxidizing agent and isolating the product.

    摘要翻译: 公开了可用作不饱和高聚物的抗臭氧剂的新型N-烷基 - 对 - 醌二亚氨基三嗪化合物。 该化合物可以通过用中性或碱性氧化剂氧化2,4,6-三(N-烷基 - 对苯二氨基)1,3,5-三嗪并分离产物来制备。