首页> 外国专利> Process for the regiospecific sulfonation of 2-amino-naphtalenes substituted in the 5- or 7-position by a fibre reactive vs-group, the novel 5-sulfo-substituted fiber-reactive 2-amino-naphthalene, and fibre-reactive azo dyes thereof

Process for the regiospecific sulfonation of 2-amino-naphtalenes substituted in the 5- or 7-position by a fibre reactive vs-group, the novel 5-sulfo-substituted fiber-reactive 2-amino-naphthalene, and fibre-reactive azo dyes thereof

机译：纤维反应性vs-基团，新颖的5-磺基取代的纤维反应性2-氨基萘和纤维反应性偶氮染料在5或7位取代的2-氨基萘烷的区域特异性磺化方法其中

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Process for the regiospecific sulfonation of 2-amino-naphthalenes substituted in the 5- or 7-position by a fibre-reactive VS-group, the novel 5-sulfo-substituted fiber-reactive 2-amino-naphthalene, and fibre-reactive azo dyes thereof.;Acylamino-naphthalene and amino-naphthalene compounds of the general formula (1) wherein:R is hydrogen or a group of the general formula -CO-R′ in whichR′ is an alkyl, aryl or substituted alkyl or substituted aryl group,X is a group of the formula -CH₂-CH₂-Z , in which Z is an organic or inorganic substituent capable of being split off by means of an alkaline agent, andthe sulfo group -SO₃H is in the 7-position if the group X-SO₂- is in the 5-position, orthe sulfo group is in the 5-position if the group X-SO₂- is in the 7-position,are regiospecifically prepared by reacting a 2-acylamino naphthalene compound of the general formula (2) in which R′ is defined as above, X¹ has one of the meanings of X or is the β-hydroxyethyl group, and the group X¹-SO₂- is in the 5- or 7-position, with a sulfonation agent, and, if desired to form a compound of formula (1) in which R is hydrogen, the compound of formula (1) in which R′ is a group of the formula -CO-R′ , is hydrolyzed by diluting with water to a 85 to 100 % sulfuric acid solution and heating at a temperature between 80 to 120°C.;The compound of formula wherein:M is hydrogen or an alkali metal,R is hydrogen or a group of the general formula -CO-R′ in whichR′ is an alkyl, aryl or substituted alkyl or substituted aryl group, andX² is the vinyl group or a group of the formula -CH₂-CH₂-Z , in which Z is an organic or inorganic substituent capable of being split off by means of an alkaline agentis novel in the art.;The compounds of formula (1), in which R is hydrogen, are used as a diazo component to prepare novel fibre-reactive azo dyestuffs, which are described in the specification, suitable for dyeing, for example, cotton in fast shades.

机译：用于在5或7位上被纤维反应性VS-基团取代的2-氨基萘，新型5磺基取代的纤维反应性2-氨基萘和纤维反应性偶氮的区域特异性磺化的方法染料;通式（1）的酰基氨基萘和氨基萘化合物其中：R为氢或通式-CO-R'的基团，其中R'为烷基，芳基或取代的烷基或取代的芳基，X是式-CH 2 -CH 2 -Z的基团，其中Z是能被碱性试剂分解的有机或无机取代基，和如果基团X-SO 2-在5位上，则磺基-SO 3 H在7位上，或如果基团X-SO 2-在7位上，则磺基在5位上，通过使通式（2）的2-酰基氨基萘化合物反应而在区域上特异性地制备其中R 1的定义如上，X 1具有X的含义之一或为β-羟乙基，且<！-EPO ->基团X 1 -SO 2-位于用磺化剂在5或7位上，并且，如果需要形成其中R是氢的式（1）化合物，则其中R'是式-基团的式（1）化合物通过用水稀释至85至100％的硫酸溶液并在80至120°C的温度下加热将CO-R'水解。其中：M是氢或碱金属，R为氢或通式-CO-R'的基团，其中R'是烷基，芳基或取代的烷基或取代的芳基，并且X 2是乙烯基或式-CH 2 -CH 2 -Z的基团，其中Z是有机或无机取代基，能被碱性试剂分解。其中R是氢的式（1）化合物用作重氮组分以制备新颖的纤维反应性偶氮染料，其在说明书中描述，例如适于染色。棉花在快速的阴影。

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公开/公告号EP0344343B1

专利类型
公开/公告日1993-04-21

原文格式PDF
申请/专利权人 HOECHST CELANESE CORPORATION;
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申请/专利号EP19880108741
发明设计人 PHILLIPS THOMAS S.;CORSO ANTONY J.;
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申请日1988-06-01
分类号C07C315/00;C07C317/00;C09B62/006;D06P1/02;
国家 EP
入库时间 2022-08-22 05:06:30

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