Process for the preparation of chlorine-substituted aromatic amines
    4.
    发明授权
    Process for the preparation of chlorine-substituted aromatic amines 失效
    制备氯取代芳香胺的方法

    公开(公告)号:US4230637A

    公开(公告)日:1980-10-28

    申请号:US941098

    申请日:1978-09-08

    申请人: Jurgen Zander

    发明人: Jurgen Zander

    IPC分类号: C07C85/11

    摘要: An improved process for the preparation of a chlorinated aromatic amine by reaction of a chlorinated aromatic nitro compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and denote hydrogen or chlorine with hydrogen in the presence of a hydrogenation catalyst under pressure at an elevated temperature in the presence of a solvent and a minor amount of a basic compound, the improvement residing in employing ammonia as the basic compound.

    摘要翻译: 通过在加压催化剂的存在下,在压力下存在的氢化催化剂的下式,其中R1和R2是相同或不同的,表示氢或氯与氢气反应制备氯化芳族胺的改进方法 在溶剂和少量碱性化合物的存在下升高温度,其中使用氨作为碱性化合物。