Process for the preparation of 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole
    1.
    发明授权
    Process for the preparation of 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole 失效
    2,4-二甲基-3,5-双烷氧基羰基吡咯的制备方法

    公开(公告)号:US06258959B1

    公开(公告)日:2001-07-10

    申请号:US09459724

    申请日:1999-12-13

    IPC分类号: C07D207416

    CPC分类号: C07D207/34

    摘要: A process for the preparation of 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole is described, in which an acetoacetic alkyl ester is nitrosated to give the 2-nitrosoacetoacetic alkyl ester, the nitroso compound is reduced using hydrogen in the presence of a noble metal catalyst to give the amine, and the resulting amino compound is condensed without isolation in the presence of the corresponding non-nitrosated acetoacetic alkyl ester to give the 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole. The process makes it possible to work under conditions which are milder than in the prior art and to avoid the formation of by-products.

    摘要翻译: 描述了制备2,4-二甲基-3,5-双烷氧羰基吡咯的方法,其中将乙酰乙酸烷基酯亚硝化得到2-亚硝基乙酰乙酸烷基酯,亚硝基化合物在贵金属存在下用氢还原 金属催化剂得到胺,所得的氨基化合物在相应的非亚硝基化乙酰乙酸烷基酯的存在下不分离而冷凝,得到2,4-二甲基-3,5-双烷氧基羰基吡咯。 该方法使得可以在比现有技术更温和的条件下工作并避免副产物的形成。

    Isoindoline colorants
    3.
    发明授权
    Isoindoline colorants 失效
    异吲哚啉着色剂

    公开(公告)号:US4352932A

    公开(公告)日:1982-10-05

    申请号:US227279

    申请日:1981-01-22

    IPC分类号: C09B57/04

    CPC分类号: C09B57/04

    摘要: Isoindoline colorants of the formula ##STR1## where X is a radical of the formula ##STR2## R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, benzyl, phenyl, 1-naphthyl or a 5-membered or 6-membered, unsaturated heterocyclic radical which may or may not be benzo-fused, R.sup.2 and R.sup.3, independently of one another, are hydrogen, C.sub.1 -C.sub.4 -alkyl, benzyl, phenyl or 1-naphthyl, and the ring A and the phenyl, naphthyl and heterocyclic radicals in R.sup.1, R.sup.2 and R.sup.3 can be substituted by groups which do not confer solubility. The colorants give deep, strongly bluish red hues in surface coatings, printing inks and plastics. The colorations have good lightfastness and fastness to migration.

    摘要翻译: 其中X是下式的基团的化合物:其中X是下式的基团:R 1是氢,C 1 -C 4 - 烷基,苄基,苯基,1-萘基或5元或6元不饱和杂环基,其中 可以是也可以不是苯并稠合的,R 2和R 3彼此独立地是氢,C 1 -C 4 - 烷基,苄基,苯基或1-萘基,并且环A和R 1中的苯基,萘基和杂环基, R2和R3可以被不赋予溶解性的基团取代。 着色剂在表面涂料,印刷油墨和塑料中赋予深度,强烈的蓝色红色色调。 着色具有良好的耐光性和耐迁移性。

    Process for conditioning isoindoline pigments
    4.
    发明授权
    Process for conditioning isoindoline pigments 失效
    异二氢吲哚颜料调理方法

    公开(公告)号:US4845214A

    公开(公告)日:1989-07-04

    申请号:US882359

    申请日:1986-07-07

    CPC分类号: C09B67/0017 C09B57/04

    摘要: Isoindoline pigments are conditioned by means of a heat treatment of the pigment in a mixture of water and benzenemonocarboxylic and/or benzenedicarboxylic acids.Well crystallized, very weatherfast pigmentary forms which give colorations possessing improved purity of shade are obtained.

    摘要翻译: 异吲哚啉颜料通过在水和苯二羧酸和/或苯二甲酸的混合物中的颜料的热处理来调节。 得到结晶好的非常耐候色素形式,其具有提高色调纯度的着色。

    Modified diarylide pigments and their preparation
    5.
    发明授权
    Modified diarylide pigments and their preparation 失效
    改性二芳基颜料及其制备方法

    公开(公告)号:US4602960A

    公开(公告)日:1986-07-29

    申请号:US641199

    申请日:1984-08-16

    IPC分类号: C09B35/215 C09B67/22 C09C3/00

    CPC分类号: C09B67/0046

    摘要: A novel modified diarylide pigment contains (a) a pigment which is composed of a tetrazotized benzidine, coupled to an acetoacetarylide and/or a 1-phenyl-3-methylpyrazole-5-one, and (b) a water-soluble component obtained from a symmetric or asymmetric coupling product of a tetrazotized 4,4'-diamino-2,2'-stilbenedisulfonic acid and an acetoacetarylide and/or a 1-phenyl-3-methyl-5-pyrazolone. The novel pigments possess very good color strength, very good gloss characteristics and very good transparency, and exhibit improved printing characteristics, particularly in offset printing inks.

    摘要翻译: 一种新型改性二芳基颜料包含(a)由与四氢吡喃并联联苯并联苯乙酰乙酰胺和/或1-苯基-3-甲基吡唑-5-酮的颜料,和(b)由 四唑化4,4'-二氨基-2,2'-二苯乙烯二磺酸和乙酰乙酰芳胺和/或1-苯基-3-甲基-5-吡唑啉酮的对称或不对称偶联产物。 新型颜料具有非常好的着色强度,非常好的光泽特性和非常好的透明度,并且表现出改善的印刷特性,特别是在胶印油墨中。

    Isoindoline colorants
    6.
    发明授权
    Isoindoline colorants 失效
    异吲哚啉着色剂

    公开(公告)号:US4340735A

    公开(公告)日:1982-07-20

    申请号:US227251

    申请日:1981-01-22

    IPC分类号: C09B57/04

    CPC分类号: C09B57/04

    摘要: Isoindoline colorants of the formula ##STR1## where R.sup.1 is the radical of a 5-membered or 6-membered heterocyclic unsaturated ring, which may or may not be fused to a benzo ring, X is ##STR2## R.sup.2 and R.sup.3 independently of one another are hydrogen, C.sub.1 -C.sub.4 -alkyl, benzyl, phenyl or 1-naphthyl, and R.sup.1, the phenyl and naphthyl radicals, and the ring A may or may not be substituted by groups which do not confer solubility.In surface coatings, printing inks and plastics the novel colorants give yellow to red or brown very deep colorations which have good lightfastness, and fastness to weathering and to overspraying.

    摘要翻译: 其中R1是5元或6元杂环不饱和环的基团的异吲哚啉着色剂,其可以或可以不与苯并稠合,X是彼此独立的R 2和R 3 是氢,C 1 -C 4 - 烷基,苄基,苯基或1-萘基,并且R 1,苯基和萘基,并且环A可以被或不可被不赋予溶解性的基团取代。 在表面涂料,印刷油墨和塑料中,新型着色剂产生黄色至红色或棕色非常深的着色,其具有良好的耐光性,耐候性和过喷性。

    Isoindoline colorants
    7.
    发明授权
    Isoindoline colorants 失效
    异吲哚啉着色剂

    公开(公告)号:US4746740A

    公开(公告)日:1988-05-24

    申请号:US886318

    申请日:1986-07-17

    IPC分类号: C09B57/04

    CPC分类号: C09B57/04

    摘要: Isoindoline colorants of the formula ##STR1## where the radicals R independently of one another are each methyl or ethyl, give neutral yellow colorations when incorporated into surface coatings. The colorations do not darken on weathering and, compared with prior art pigments, exhibit improved gloss stability on weathering.

    摘要翻译: 其中基团R彼此独立的式(I)的异吲哚啉着色剂各自为甲基或乙基,当掺入表面涂层中时,产生中性黄色。 着色在风化时不变暗,与现有技术的颜料相比,在耐候性方面表现出改善的光泽稳定性。

    Isoindoline dyes
    8.
    发明授权
    Isoindoline dyes 失效
    异吲哚啉染料

    公开(公告)号:US4723023A

    公开(公告)日:1988-02-02

    申请号:US876427

    申请日:1986-06-20

    CPC分类号: C09B57/04

    摘要: Isoindoline dyes of the general formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl and R.sup.2 and R.sup.3 independently of one another are each hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine, bromine, fluorine, trifluoromethyl, methoxycarbonyl, ethoxycarbonyl or nitro, give pure brilliant deep yellow colorations with good lightfastness in surface coatings, printing inks and plastics.

    摘要翻译: 其中R1是氢,C1-C4-烷基或苄基以及R2和R3彼此独立的通式为“IMAGE”的异吲哚啉染料各自为氢,甲基,乙基,甲氧基,乙氧基,氯,溴,氟,三氟甲基,甲氧基羰基 ,乙氧基羰基或硝基,在表面涂料,印刷油墨和塑料中具有良好的耐光性的纯煌深黄色着色。

    2,4-Dioxotetrahydropyrimido-(1,2-a)-benzimidazole substituted
isoindoline dyes and their use
    9.
    发明授权
    2,4-Dioxotetrahydropyrimido-(1,2-a)-benzimidazole substituted isoindoline dyes and their use 失效
    2,4-二氧代四氢嘧啶 - (1,2-a) - 苯并咪唑取代的异吲哚啉染料及其用途

    公开(公告)号:US4525591A

    公开(公告)日:1985-06-25

    申请号:US470946

    申请日:1983-03-01

    IPC分类号: C09B57/04 C07D487/04

    CPC分类号: C09B57/04

    摘要: Isoindoline dyes of the formula ##STR1## where X is a radical of the formula ##STR2## and R is hydrogen, alkyl, benzyl, phenyl, napth-1-yl or a 5-membered or 6-membered unsaturated heterocyclic radical which may or may not be fused to a benzene ring, and the rings A, the phenyl ring, the naphthyl ring and the heterocyclic radical in R are unsubstituted or substituted by non-solubilizing groups, color finishes, printing inks and plastics in deep red or brown hues which are very lightfast and fast to migration.

    摘要翻译: 其中X是下式的基团,其中R是氢,烷基,苄基,苯基,萘-1-基或5元或6元不饱和的 可以或可以不与苯环稠合的杂环基,R中的环A,苯环,萘环和杂环基是未取代的或被非增溶基团,着色剂,印刷油墨和塑料取代 深红色或棕色色调,非常耐光和快速迁移。

    Isoindoline colorants
    10.
    发明授权
    Isoindoline colorants 失效
    异吲哚啉着色剂

    公开(公告)号:US4401815A

    公开(公告)日:1983-08-30

    申请号:US231047

    申请日:1981-02-03

    CPC分类号: C09B57/04

    摘要: Novel isoindoline colorants of the formula ##STR1## where R.sup.1 is phenyl or 1-naphthyl, which are unsubstituted or substituted by groups which do not confer solubility, R.sup.2 and R.sup.3, independently of one another, are C.sub.1 -C.sub.4 -alkyl or benzyl or R.sup.3 is hydrogen and R.sup.2 is C.sub.1 -C.sub.4 -alkyl or benzyl, or is phenyl or 1-naphthyl which are unsubstituted or substituted by groups which do not confer solubility, R.sup.1 and R.sup.2 being identical or different, and the use of these colorants.In surface coatings, printing inks and plastics, the products give brilliant yellow to red colorations, which exhibit very good lightfastness and fastness to weathering, and good fastness to overcoating.

    摘要翻译: 其中R1是苯基或1-萘基,其未被取代或被不赋予溶解性的基团R2和R3彼此独立地取代的新颖的异吲哚啉着色剂是C1-C4-烷基或苄基或R3 是氢,R 2是C 1 -C 4 - 烷基或苄基,或者是未被取代或被不具有溶解性的基团取代的苯基或1-萘基,R 1和R 2相同或不同,以及这些着色剂的用途。 在表面涂料,印刷油墨和塑料中,产品呈现出明亮的黄色至红色,具有非常好的耐光性和耐候性,耐外涂性好。