Chromogenic naphtholactams
    5.
    发明授权
    Chromogenic naphtholactams 失效
    显色萘酚内酰胺

    公开(公告)号:US4525588A

    公开(公告)日:1985-06-25

    申请号:US502039

    申请日:1983-06-07

    申请人: Rudolf Zink

    发明人: Rudolf Zink

    摘要: The invention relates to chromogenic naphtholactams of the general formula ##STR1## wherein Q is the radical of a couplable compound,X is oxygen or ##STR2## wherein R is hydrogen, lower alkyl or aryl, and W is alkylene, cycloalkylene or a 6-membered isocyclic or heterocyclic aromatic radical which is unsubstituted or substituted or which may contain a fused benzene ring; and each of the ringsA and B independently of the other are unsubstituted or substituted.These compounds are particularly suitable for use as color formers in pressure-sensitive or heat-sensitive recording materials and, depending on the meaning of X and Q, give orange, red, violet and blue colorations.

    摘要翻译: 本发明涉及通式为(IMAGE)(1)的显色萘酚内酰胺,其中Q是可结合化合物的基团,X是氧或者其中R是氢,低级烷基或芳基,W是亚烷基,亚环烷基或 未被取代或取代或可含稠合苯环的6元环或杂环芳族基团; 环A和B各自独立地为未取代或取代的。 这些化合物特别适合用作压敏或热敏记录材料中的成色剂,并且根据X和Q的含义,给出橙色,红色,紫色和蓝色。

    Process for producing 1,8-naphtholactam compounds
    6.
    发明授权
    Process for producing 1,8-naphtholactam compounds 失效
    1,8-萘内酰胺化合物的制备方法

    公开(公告)号:US4515963A

    公开(公告)日:1985-05-07

    申请号:US458394

    申请日:1983-01-14

    申请人: Rainer Begrich

    发明人: Rainer Begrich

    CPC分类号: C07D413/04 C07D209/92

    摘要: There is described a novel process for producing 1,8-naphtholactam compounds of the formula I ##STR1## wherein the symbols R, A and B have the meanings defined in claim 1. This process comprises reacting a 1,8-naphtholactone compound of the formula II ##STR2## in an aqueous medium, with an amine of the formula IIINH.sub.2 --R (III),optionally in the presence of bisulfite. The naphtholactam compounds of the formula I are obtained with a high degree of purity and with a yield of over 90%.

    摘要翻译: 描述了一种制备式I(I)的1,8-萘内酰胺化合物的新方法,其中符号R,A和B具有权利要求1中定义的含义。该方法包括使1,8-萘酚内酯 式II II化合物在水性介质中与式III NH2-R(III)的胺任选在亚硫酸氢盐存在下反应。 获得式I的萘并内酰胺化合物,其纯度高,收率高于90%。

    Naphtholactam dyes
    7.
    发明授权
    Naphtholactam dyes 失效
    萘酚内酰胺染料

    公开(公告)号:US4260770A

    公开(公告)日:1981-04-07

    申请号:US793094

    申请日:1977-05-02

    摘要: New Dyes of the formula ##STR1## are described wherein R represents alkyl, alkenyl or preferably hydrogen,X represents a modified carboxyl group, the radical --SO.sub.2 --T or a heterocyclic radical wherein T represents alkyl, alkenyl or preferably aryl,An represents an anion,Y represents a basic radical bound by way of a modified carboxyl group,Z represents a nonionic substituent,n represents 0, 1 or 2,m represents 0 or 1,A represents a heterocyclic radical or --CN,andB and C can carry further nonionic substituents, which dyes yield briliant, bright orange to red dyeings which for the most part fluoresce in ultraviolet light and have excellent fastness properties in service.

    摘要翻译: 其中R表示烷基,烯基或优选氢,X表示经修饰的羧基,基团-SO 2 -T或杂环基,其中T表示烷基,烯基或优选芳基,新的染料表示式 阴离子,Y表示通过改性羧基结合的碱性基团,Z表示非离子取代基,n表示0,1或2,m表示0或1,A表示杂环基或-CN,B和C可以 携带更多的非离子取代基,这些染料产生粗糙的,明亮的橙色至红色染色,其大部分在紫外线中发荧光,并具有优异的耐牢度性质。

    Process for the preparation of naphthostyril
    8.
    发明授权
    Process for the preparation of naphthostyril 失效
    制备萘普生的方法

    公开(公告)号:US4152330A

    公开(公告)日:1979-05-01

    申请号:US822247

    申请日:1977-08-05

    申请人: Horst Harnisch

    发明人: Horst Harnisch

    IPC分类号: C07D209/92

    CPC分类号: C07D209/92

    摘要: Naphthostyril is obtained in high space/time yields by reacting 1-naphthyl isocyanate with an anhydrous aluminium halide in an inert solvent, carrying out the reaction in a homogeneous solution using 700-1.800 ml of solvent per mol of 1-naphthyl isocyanate in the temperature range from 140.degree.-160.degree. C. and -- after hydrolysis of the reaction mixture -- separating the phases. Naphthostyril is an intermediate for preparation of dyestuffs.