Method for using a carbamoyl fluoride as fluorinating agent
    3.
    发明授权
    Method for using a carbamoyl fluoride as fluorinating agent 失效
    使用氨基甲酰氟作为氟化剂的方法

    公开(公告)号:US06833476B2

    公开(公告)日:2004-12-21

    申请号:US10450600

    申请日:2003-10-17

    IPC分类号: C07C5158

    摘要: The invention concerns a method for using a carbamoyl fluoride as fluorinating agent. Said method consists in treating a derivative bearing a halogen-containing carbon, with a carbamoyl fluoride at a temperature not less than 70 ° C. and in maintaining the ratio between the sum of hydrofluoric acid (HF) and carbamoyl fluoride as well as between the sum of exchangeable halogen atoms, isocyanate functions and carbamoyl fluoride [(HF+carbamoyl fluoride)/(exchangeable halogen+isocyanate+carbamoyl fluoride)] at a value not more than 1.2; then in carrying out a catalysis process with tin, antimony and/or titanium salt. The invention is applicable to synthesis of fluorinated derivatives.

    摘要翻译: 本发明涉及使用氨基甲酰氟作为氟化剂的方法。 所述方法包括用温度不低于70℃的氨基甲酰氟处理带有含卤素碳的衍生物,并保持氢氟酸(HF)和氨基甲酰氟之和之间的比率 可交换的卤素原子,异氰酸酯官能团和氨基甲酰氟[(HF +氨基甲酰氟)/(可交换卤素+异氰酸酯+氨基甲酰氟)]的数值不超过1.2; 然后用锡,锑和/或钛盐进行催化过程。 本发明适用于氟化衍生物的合成。

    Chlorination of an aniline in a hydrofluoric medium
    5.
    发明授权
    Chlorination of an aniline in a hydrofluoric medium 失效
    在氢氟酸介质中氯化苯胺

    公开(公告)号:US06747175B2

    公开(公告)日:2004-06-08

    申请号:US10204942

    申请日:2002-10-21

    IPC分类号: C07C20974

    摘要: The invention concerns a method for the synthesis of chlorinated aniline on the ring and comprising at least a sp3 hybridization carbon atom both perhalogenated and bearing a fluorine atom. Said method is characterized in that it comprises a step which consists in chlorinating a precursor aniline of said chlorinated aniline, said chlorination being carried out in a hydrofluoric medium capable of exchanging chlorine and fluorine in benzyl position. The invention is useful for the synthesis of organofluorinated and/or chlorinated compounds.

    摘要翻译: 本发明涉及一种在环上合成氯化苯胺的方法,它包含至少一个全卤代和带有氟原子的sp3杂交碳原子。 所述方法的特征在于它包括将所述氯化苯胺的前体苯胺氯化的步骤,所述氯化在能够在苄基位置交换氯和氟的氢氟酸介质中进行。 本发明可用于合成有机氟化和/或氯化化合物。

    Preparation of n-phenylbenzoquinone-imine and converting same into
p-phenylenediamines
    6.
    发明授权
    Preparation of n-phenylbenzoquinone-imine and converting same into p-phenylenediamines 失效
    制备N-苯基苯醌 - 并将其转化为对苯二甲酸

    公开(公告)号:US5189218A

    公开(公告)日:1993-02-23

    申请号:US668637

    申请日:1991-03-13

    CPC分类号: C07C209/52 C07C249/02

    摘要: N-phenylbenzoquinone-imine is prepared by oxidizing N-(4-hydroxyphenyl)aniline in a liquid, at least partially organic reaction medium, in the presence of a basic compound and, advantageously, a catalytically effective amount of at least one manganese, copper, cobalt and/or nickel compound; this imine can be reacted with an aliphatic or cycloaliphatic amine to produce an N-phenyl-N'-cycloalkyl-para-phenylene-diamine and an N-phenyl-N'-cycloalkyl-2,5-cyclohexadiene-1,4-diimine, such 1,4-diimine itself being easily reduced to the corresponding p-phenylenediamine.

    摘要翻译: 通过在碱性化合物存在下,在液体,至少部分有机反应介质中氧化N-(4-羟基苯基)苯胺,有利地,催化有效量的至少一种锰,铜 ,钴和/或镍化合物; 该亚胺可与脂族或脂环族胺反应,生成N-苯基-N'-环烷基 - 对 - 亚苯基二胺和N-苯基-N'-环烷基-2,5-环己二烯-1,4-二亚胺 ,这种1,4-二亚胺本身容易还原成相应的对苯二胺。