CAS: 117-59-9; 5-Hydroxynaphthalene-1-Sulfonic Acid

相似化合物

118-32-1 84-87-7 132-57-0

上下游产品

CAS号84-89-9 5-氨基-1-萘磺酸 | CAS号81-04-9 1,5-萘二磺酸 | CAS号417712-00-6 5-oxo-5,6,7,8-t... | CAS号7664-93-9 硫酸 | CAS号171290-14-5 5-sulfo-naphtha... | CAS号90-15-3 1-萘酚 | CAS号2834-90-4 4-氨基-1-萘酚 | CAS号303-07-1 2,6-二羟基苯甲酸 | CAS号83-56-7 1,5-二羟基萘 | CAS号56875-56-0 5-甲氧基-1-萘磺酰氯 | CAS号573-07-9 6-amino-5-hydro... | CAS号606-41-7 2-氨基-1-萘酚

1,5-萘二磺酸置于sodium Hydroxide体系中,化学反应生成1-萘酚-5-磺酸
参考文献:De41934
标题:De41934

专利信息

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:US-4035350-A
优先权日:1975-01-30
标 题:Process for the preparation of water-soluble azo dyestuffs by reacting an aromatic amine and a coupling component with alkali metal nitrite or alkyl nitrite in the absence of acid
发明人：LANDLER JOSEF; WORFEL ERHARD
权利人:HOECHST AG
摘要:A new and very advantageous Process had been found for the preparation of azo dyestuffs by diazotation and coupling in which the synthesis is carried out without the hitherto usual addition of an acid, with the proviso that at least one of the diazo and coupling components contains at least one acid group. Besides the saving of reaction material and subsequently of alkali for neutralization of the reaction medium and isolation of the dyestuff, highly concentrated solutions of the dyestuff and salt-free or practically salt-free dyestuffs can be obtained, and waste-water is no longer charged with big amounts of salts.

专利号:CN-108395027-A
优先权日:2018-05-11
标 题:Production wastewater treatment process for the synthesis of 2-nitroso-1-naphthol-5-sulfonic acid intermediate from 1-naphthol-5-sulfonic acid

专利号:CN-119019274-A
优先权日:2024-09-02
标题:Sitagliptin Synthesis method of intermediate