Preparation of 7,16-dichlorodianthraquinone-N,N'-dihydroazine
    2.
    发明授权
    Preparation of 7,16-dichlorodianthraquinone-N,N'-dihydroazine 失效
    制备7,16-二氯代蒽醌-N,N'-二氢吖嗪

    公开(公告)号:US5367074A

    公开(公告)日:1994-11-22

    申请号:US79939

    申请日:1993-06-23

    CPC分类号: C09B5/48

    摘要: 7,16-Dichlorodianthraquinone-N,N'-dihydroazine (I) ##STR1## is prepared by condensing 1-amino-3-chloroanthraquinone (II) in the presence of an alkaline condensing aid, of an oxidizing agent and of a urea derivative (III) ##STR2## (R: identical or different alkyl groups having 1 to 4 carbon atoms, which may be joined together to form a 5- or 6-membered ring that contains the urea group).

    摘要翻译: 7,16-二氯代醌 - N,N'-二氢吖嗪(I)通过在碱性助凝剂,氧化剂存在下将1-氨基-3-氯蒽醌(II)和 脲衍生物(III)(III)(R:具有1至4个碳原子的相同或不同的烷基,其可以连接在一起形成含有脲基团的5-或6-元环)。

    Process for the manufacture of dianthraquinonyl-N,N'-dihydroazine
    3.
    发明授权
    Process for the manufacture of dianthraquinonyl-N,N'-dihydroazine 失效
    制备二蒽醌-N,N'-二氢吖嗪的方法

    公开(公告)号:US4374989A

    公开(公告)日:1983-02-22

    申请号:US293985

    申请日:1981-08-18

    IPC分类号: C07D241/38 C09B5/48

    CPC分类号: C07D241/38 C09B5/48

    摘要: A process for the manufacture of dianthraquinonyl-N,N'-dihydroazine, which comprises reacting 1-nitroanthraquinone in mixtures of water, alcohols and alkali metal hydroxides at elevated temperature with hydrazine or hydroxylamine compounds, subsequently removing the alcoholic constituents from the reaction mixture, adding dimethyl sulfoxide, and, if desired, further amounts of alkali metal hydroxides, and bringing the reaction to completion at elevated temperature.

    摘要翻译: 一种制备二蒽醌-N,N'-二氢吖嗪的方法,其包括将水,醇和碱金属氢氧化物的混合物中的1-硝基蒽醌与肼或羟胺化合物反应,随后从反应混合物中除去醇组分, 加入二甲基亚砜,如果需要,还可加入碱金属氢氧化物,并使反应在升高的温度下完成。

    Motjrs
    7.
    发明授权
    Motjrs 失效

    公开(公告)号:US1739736A

    公开(公告)日:1929-12-17

    申请号:US1739736D

    CPC分类号: C09B5/48 C09B5/58

    Donald
    8.
    发明授权
    Donald 失效

    公开(公告)号:US1609965A

    公开(公告)日:1926-12-07

    申请号:US1609965D

    IPC分类号: C09B5/48

    CPC分类号: C09B5/48