Process for producing 1,3-bis(3-aminophenoxy)benzene
    2.
    发明授权
    Process for producing 1,3-bis(3-aminophenoxy)benzene 失效
    1,3-双(3-氨基苯氧基)苯的制备方法

    公开(公告)号:US4692554A

    公开(公告)日:1987-09-08

    申请号:US638732

    申请日:1984-08-07

    CPC分类号: C07C1/00 C07C217/82 C07C41/09

    摘要: A process for producing 1,3-bis(3-aminophenoxy)-benzenes which are very useful as a monomer for heat-resistant high molecular weight polymers is provided, which process comprises dehalogenating a bis(3-aminophenoxy)-halogenobenzene by its reduction, which compound is selected from the group consisting of 1,3-bis(3-aminophenoxy)-5-halogenobenzenes, 1,3-bis(3-aminophenoxy)-2,4-dihalogenobenzenes and 1,5-bis(3-aminophenoxy)-2,4-dihalogenobenzenes, these raw material compounds being respectively obtained by reacting a 1,3,5-trihalogenobenzene, a 1,2,3,4-tetrahalogenobenzene or a 1,2,4,5-tetrahalogenobenzene with 3-aminophenol in the presence of a dehydrohalogenating agent.

    摘要翻译: 提供了用作耐热高分子量聚合物的单体非常有用的1,3-双(3-氨基苯氧基) - 苯的方法,该方法包括通过其还原将双(3-氨基苯氧基) - 卤代苯脱卤 ,该化合物选自1,3-双(3-氨基苯氧基)-5-卤代苯,1,3-双(3-氨基苯氧基)-2,4-二卤代苯和1,5-双(3- 氨基苯氧基)-2,4-二卤代苯,这些原料化合物分别通过使1,3,5-三卤代苯,1,2,3,4-四卤代苯或1,2,4,5-四卤代苯与3 - 氨基苯酚在脱卤化氢剂存在下反应。

    Bis(3-aminophenoxy) aromatics and method of preparing the same
    4.
    发明授权
    Bis(3-aminophenoxy) aromatics and method of preparing the same 失效
    双(3-氨基苯氧基)芳烃及其制备方法

    公开(公告)号:US5077436A

    公开(公告)日:1991-12-31

    申请号:US831547

    申请日:1986-02-21

    摘要: Bis(3-nitrophenoxy) derivatives of aromatic or bridged aromatic hydrocarbons are derived from m-dinitrobenzene and dihydroxy derivatives of said hydrocarbons and certain substituted derivatives thereof by a condensation reaction in dipolar aprotic solvents in the presence of bases. The bis(3-nitrophenoxy) derivatives and derivatives obtained are successively reduced to afford bis-(3-aminophenoxy)derivatives. This is a new method for reacting the dihydroxy-derivatives with m-dinitrobenzene, and hence can prepare novel bis(3-aminophenoxy) derivatives such as 4,4'-bis(3-amino-phenoxy)biphenyl, 1-[4-(3-aminophenoxy)phenyl]-1,3,3-trimethyl-6-(3-aminophenoxy)indan, 6,6'-bis(3-aminophenoxy)3,3,3',3'-tetramethyl-1,1'spirobiindan, and methyl substituted 2,2'-bis[4-(3-aminophenoxy)phenyl]propane.

    摘要翻译: 芳基或桥连芳烃的双(3-硝基苯氧基)衍生物衍生自所述烃的间二硝基苯和二羟基衍生物及其取代的衍生物,其在碱存在的情况下通过偶极非质子溶剂中的缩合反应。 将所得的双(3-硝基苯氧基)衍生物和衍生物连续地还原得到双 - (3-氨基苯氧基)衍生物。 这是使二羟基衍生物与间二硝基苯反应的新方法,因此可以制备新的双(3-氨基苯氧基)衍生物,如4,4'-双(3-氨基 - 苯氧基)联苯,1- [4- (3-氨基苯氧基)苯基] -1,3,3-三甲基-6-(3-氨基苯氧基)茚满,6,6'-双(3-氨基苯氧基)3,3,3',3'-四甲基-1, 1'-螺二茚并和甲基取代的2,2'-双[4-(3-氨基苯氧基)苯基]丙烷。

    Process for producing fluorobenzophenone derivatives
    8.
    发明授权
    Process for producing fluorobenzophenone derivatives 失效
    氟代二苯甲酮衍生物的制备方法

    公开(公告)号:US4453009A

    公开(公告)日:1984-06-05

    申请号:US433438

    申请日:1982-10-08

    CPC分类号: C07C201/12

    摘要: 4-Fluorobenzophenone derivatives of 4,4'-difluorobenzophenone are produced by effecting a halogen-fluorine exchanging reaction between the corresponding 4-halogenobenzophenone derivatives or 4,4'-dihalogenobenzophenone and an alkali fluoride.The reaction is carried out by heating in an organic solvent. After distilling off the solvent from the reaction product mixture, the end product is isolated by extracting with a solvent. Alternatively the end product is isolated by distillation.

    摘要翻译: 通过在相应的4-卤代二苯甲酮衍生物或4,4'-二卤代二苯甲酮与碱金属氟化物之间进行卤素 - 氟交换反应来制备4,4'-二氟二苯甲酮的4-氟二苯甲酮衍生物。 反应通过在有机溶剂中加热进行。 从反应产物混合物中蒸除溶剂后,通过用溶剂萃取分离终产物。 或者,最终产物通过蒸馏分离。

    Process for producing aminobenzylamines
    9.
    发明授权
    Process for producing aminobenzylamines 失效
    生产氨基苄胺的方法

    公开(公告)号:US4751328A

    公开(公告)日:1988-06-14

    申请号:US931954

    申请日:1986-11-24

    IPC分类号: C07C85/11

    摘要: Aminobenzylamines are produced by catalytically reducing o-, m- or p-nitrobenzaldoxime in an organic solvent in the presence of a compound selected from the group consisting of (a) boric acid, phosphoric acid and/or anhydrides thereof, (b) CO.sub.2 gas and (c) an organic acid. The starting material, nitrobenzaldoxime is produced by reaction of the corresponding nitrobenzaldehyde with hydroxylamine.

    摘要翻译: 氨基苄胺通过在选自(a)硼酸,磷酸和/或其酸酐的化合物存在下,在有机溶剂中催化还原邻 - ,间 - 或对 - 硝基苯甲醛肟来制备,(b)CO 2气体 和(c)有机酸。 原料硝基苯甲醛肟是通过相应的硝基苯甲醛与羟胺的反应制得的。