Process for the preparation of styryl dyestuffs
    1.
    发明授权
    Process for the preparation of styryl dyestuffs 失效
    制备苯乙烯基染料的方法

    公开(公告)号:US4088673A

    公开(公告)日:1978-05-09

    申请号:US633040

    申请日:1975-11-18

    CPC分类号: C07C255/00 C09B23/143

    摘要: Process for the preparation of styryl dyestuffs, characterized in that, in a one-pot reaction, amines of the general formula form ##STR1## wherein R.sub.1 denotes alkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 -r.sub.6 denote hydrogen or non-ionic substituents, preferably alkyl, alkoxy, nitro or halogen or R.sub.1 with R.sub.3 or R.sub.5 conjointly from the remaining members of a 5-membered or 6-membered ring system which optionally contains further hetero-atomsAre treated with at least 1 equivalent of a Vilsmeier reagent, unconverted Vilsmeier reagent is decomposed, the pH value is adjusted to above 4 by addition of bases and subsequently--without any intermediate isolation--the product is treated with a methylene-active compound of the formula ##STR2## wherein X represents a nitrile or acyl group.

    摘要翻译: 苯乙烯基染料的制备方法,其特征在于在一锅反应中,通式的胺形成其中R 1表示烷基或芳基,R 2表示氢,烷基或芳基,R 3 -R 6表示氢或非 - 非离子取代基,优选烷基,烷氧基,硝基或卤素,或R 1与R 3或R 5连接地与5元或6元环系统的其余成员共价连接,任选地含有其它杂原子。用至少1个等价于 Vilsmeier试剂,未转化的Vilsmeier试剂被分解,通过加入碱将pH值调节至4以上,随后没有任何中间体分离,该产物用下式的亚甲基活性化合物(IMAGE)处理,其中X表示腈 或酰基。

    Process for the manufacture of cationic dyestuffs
    2.
    发明授权
    Process for the manufacture of cationic dyestuffs 失效
    阳离子染料的制造方法

    公开(公告)号:US4003898A

    公开(公告)日:1977-01-18

    申请号:US119393

    申请日:1971-02-26

    申请人: Walter Gomm

    发明人: Walter Gomm

    CPC分类号: C09B57/06 C07D209/90

    摘要: Process for the manufacture of dyestuffs of the general formula ##STR1## wherein R, R.sub.1, R.sub.2 represent an alkyl, cycloalkyl, aralkyl or aryl radical or R is alkyl bonded to the naphthalene ring or R.sub.1 is alkyl bonded to R.sub. 2 or bonded to the adjacent six-membered ring and X stands for an anion by condensation of naphtholactames with aromatic amines with the addition of phosphorus pentoxide.

    摘要翻译: 制备通式为“IMAGE”的染料的方法,其中R,R 1,R 2表示烷基,环烷基,芳烷基或芳基,或R为与萘环连接的烷基或R 1为与R 2键合或键合至 相邻的六元环,X表示通过加入五氧化二磷与萘胺与芳族胺的缩合而形成的阴离子。