Preparation of 7,16-dichlorodianthraquinone-N,N'-dihydroazine
    31.
    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)。

    Nigrosine dyes and process for preparing same
    34.
    发明授权
    Nigrosine dyes and process for preparing same 失效
    苯胺黑染料及其制备方法

    公开(公告)号:US4624709A

    公开(公告)日:1986-11-25

    申请号:US540646

    申请日:1983-10-11

    申请人: Masahiro Otsuka

    发明人: Masahiro Otsuka

    摘要: A novel substituted nigrosine dye represented by the formula D-R).sub.n wherein D is a nigrosine dye residue, R is C.sub.3 -C.sub.18 alkyl or alkenyl which may be straight or branched, or aralkyl or aralkenyl which may have a C.sub.1 -C.sub.8 alkyl substituent on the aryl moiety, the R in each case being the same as or different from the others, and n is a number of 1 to 4. The novel nigrosine dye is prepared by reacting a corresponding unsubstituted nigrosine dye with an alkyl halide, alkenyl halide, aralkyl halide, or aralkenyl halide, or with a mixture thereof, to form the substituted nigrosine dye. The novel dye has a high solubility in and compatability with organic solvents and/or resins and is oleophilic and stable and particularly useful for ink compositions and as a charge control agent for the toners of electrophotographic or electrostatic image developers.

    摘要翻译: 由式DR)n表示的新型取代的苯胺黑染料,其中D是苯胺黑染料残基,R是可以是直链或支链的C 3 -C 18烷基或链烯基,或在其上可具有C 1 -C 8烷基取代基的芳烷基或芳烯基 芳基部分,每种情况下的R与其它情况相同或不同,n为1至4的数。新型苯胺黑染料通过使相应的未取代的苯胺黑染料与烷基卤,烯基卤,芳烷基 卤化物或芳烷基卤化物,或其混合物形成被取代的苯胺黑染料。 新型染料在有机溶剂和/或树脂中具有高溶解度和相容性,并且是亲油且稳定的,并且特别适用于油墨组合物和用作电子照相或静电图像显影剂调色剂的电荷控制剂。

    A-32256 Phenazine antibiotic
    35.
    发明授权
    A-32256 Phenazine antibiotic 失效
    A-32256吩嗪抗生素

    公开(公告)号:US4400510A

    公开(公告)日:1983-08-23

    申请号:US304293

    申请日:1981-09-21

    IPC分类号: C07D241/46 C12P17/12

    CPC分类号: C07D241/46 C12P17/12

    摘要: Antibiotic A-32256 which is produced by submerged, aerobic fermentation of a Streptomyces sp. NRRL 12067. The antibiotic has shown antibacterial activity against Staphylococcus and Streptococcus and various anaerobic species. In addition, the antibiotic has shown antitrichomonas activity in vitro, as well as activity for improving ruminant feed efficency and as a mosquito larvacide.

    摘要翻译: 抗生素A-32256,其通过链霉菌(Streptomyces sp。)的潜在,好氧发酵产生。 NRRL 12067.抗生素对葡萄球菌和链球菌及各种厌氧物质具有抗菌活性。 此外,抗生素在体外已经显示出抗滴虫活性,以及​​提高反刍动物饲料效率的活性和作为灭蚊剂。

    Method for preparing 2,5-dihalopyrazines
    36.
    发明授权
    Method for preparing 2,5-dihalopyrazines 失效
    制备2,5-二卤代吡嗪的方法

    公开(公告)号:US3976644A

    公开(公告)日:1976-08-24

    申请号:US537056

    申请日:1974-12-27

    CPC分类号: C07D241/20 C07D241/16

    摘要: A method for preparing 2,5-dihalopyrazines corresponding to the formula ##SPC1##Wherein X represents chloro, bromo or fluoro which comprises, reacting a 3,5,6-trihalo-2-hydrazinopyrazine of the formula ##SPC2##With an aqueous alkali metal hydroxide in the presence of a hydroxylic reaction medium.

    摘要翻译: 一种制备对应于式WHEREIN X的2,5-二卤代吡嗪的方法,其中X代表氯,溴或氟,它包括使下式的3,5,6-三卤代-2-肼基吡嗪与水溶液中的碱金属氢氧化物反应 羟基反应介质。