CAS: 13244-33-2; 2-Amino-5-Methoxybenzenesulfonic Acid

相似化合物

88-21-1 13846-13-4 2694722-01-3

上下游产品

trisodium 7-({4-chloro-6-[(3-sulphonatophenyl)amino]-1,3,5-triazin-2-yl}methylamino)-4-hydroxy-3-[(4-methoxy-2-sulphonatophenyl)azo]naphthalene-2-sulphonate isopropyl alcohol para-methoxynitrobenzene 6-methoxy-1,3-benzothiazole2-azido-5-methoxybenzenesulfonic acid 2-azido-5-methoxy-benzenesulfonyl chloride 2-azido-5-methoxy-N-(2-methoxyethyl)benzenesulfonamide 2-sulfo-4-methoxybenzoic acid

苯酚置于盐酸,Sodium Nitrate,硫酸,Sodium Hydroxide,锌体系中,用 水 用作溶剂,15.0~115.0 °C,1.5 Mpa 条件下,反应 6.09H,反应生成对氨基苯甲醚-3-磺酸
参考文献:一种2-氨基-5-甲氧基苯磺酸的合成方法
标题:一种2-氨基-5-甲氧基苯磺酸的合成方法
摘要:本发明公开了一种2-氨基-5-甲氧基苯磺酸的合成方法,属于有机化学合成技术领域.本发明首先在苯酚中加入2H2So4和硝酸钠生成对硝基苯酚,之后再加入锌粉和盐酸,进一步生成对氨基苯酚,接下来将氨基苯酚中滴加浓硫酸和阿拉丁试剂,反应后得2-氨基-5-羟基苯磺酸,随后再通过加入氢氧化钠溶,生成2-氨基-5-钠氧基苯酚酸钠,最后通过在2-氨基-5-钠氧基苯酚酸钠中加入ch3I溶液,从而生成2-氨基-5-甲氧基苯酚酸钠后,高温加入h2So4溶液,生成本发明的一种2-氨基-5-甲氧基苯磺酸.本实例证明,本发明不仅操作简单易行,没有任何毒性,而且合成的产物容易自行生物降解,且合成收率达到82%以上.

专利信息

专利号:US-5189206-A
优先权日:1989-03-16
标题 :Process for the preparation of aminobenzenesulfonic acids
发明人：HERZIG PAUL
权利人:CIBA GEIGY CORP
摘要:There is disclosed a process for the preparation of compounds of formula ##STR1## wherein the symbols are as defined in claim 1, which process comprises dissolving a compound of formula ##STR2## in sulfuric acid, adding this solution to oleum and reacting the mixture in the temperature range from 10° to 80° C. until a sulfo group has been completely introduced, and, in an optional further step, subjecting the reaction mixture to further reaction in the temperature range from 100° to 200° C. to introduce a second sulfo group. n The compounds of formula (1) obtainable by this process are useful intermediates for the synthesis of dyes and are particularly suitable diazo components for the synthesis of azo dyes.

专利号:US-4719053-A
优先权日:1980-08-01
标题 :Beta-chloroethylsulfonylmethyl-benzoic halides as intermediates
发明人：SCHLAEFER LUDWIG; HAEHNLE REINHARD
权利人:HOECHST AG
摘要:New beta -chloroethylsuflonylmethyl-benzoic acid halides which can serve as fibre-reactive anchors for thesynthesis of novel organic, water-soluble compounds, preferably dyestuffs, having fibre-reactive and fibre-finishing properties, such as preferably dyestuff properties, and containing, as a fibre-reactive group, one or two beta -chloroethylsufonylmethylbenzoic acid amide groups. For the synthesis of these novel fibre-finishing compounds, said new beta -chloroethylsulfonylmethyl-benzoic acid halide compounds are reacted with an organic, water-soluble compound having fibre-finishing properties and continuing one or two amino groups. Also precursors of the fibre-finishing, fibre-reactive compounds, containing said beta -chloroethylsulfonylmethyl-benzxoic acid amid grouping, can be employed for their synthesis. The novel fibre-finishing compounds can be applied onto suitable fibre materials, such as especially cellulose fibre material and natural or synthetic polyamide fibre materials, and fixed on these fibre materials in a manner similar to application and fixation methods usual in the technique for fibre-reactive compounds. The fibre-finished material, such as dyed material, shows very good wet fastnesses.

专利号:CN-116731531-A
优先权日:2023-06-28
标题 :A kind of water-soluble bisacryloyl gamma acid dye and its synthesis method and use