CAS: 84041-77-0; 2,2'-((2-Nitro-1,4-Phenylene)Bis(Azanediyl))Diethanol

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CAS号104679-41-6 N-[4-(β-hydroxy... | CAS号29705-39-3 N-(4-氨基-3-硝基苯基)二乙醇胺 | CAS号165672-32-2 4-(2-hydroxyeth...

N-[4-(β-Hydroxyethyl)Amino-3-Nitrophenyl]Oxazolidone置于sodium Hydroxide体系中,用 乙醇 作为反应溶剂,化学反应生成 2-硝基-1,4-双羟乙氨基苯
参考文献:Process For Preparing N,N'-Disubstituted Nitro-Para-Phenylenediamines,
标题:Process For Preparing N,N'-Disubstituted Nitro-Para-Phenylenediamines,
摘要:本发明涉及一种制备n,N'-二取代硝基对苯二胺(I)的方法,该方法如下图所示:X表示卤素,R表示较低烷基,较低单或多羟基烷基,较低烷氧基烷基或较低氨基烷基,其中氨基可以是单取代或双取代的较低烷基或较低单或多羟基烷基,所述氨基的氮原子能够构成杂环系统的一部分.该发明还涉及式(II)和(Iii)的中间体噁唑烷二酮,以及新的硝基对苯二胺,其中r表示较低烷氧基烷基,较低多羟基烷基或较低氨基烷基,以及含有这些新硝基对苯二胺的角蛋白纤维染料组合物.

专利信息

专利号:EP-4206236-A1
优先权日:2021-12-28
标题 :Compounds, their synthesis and compositions comprising the compounds for enhanced deposition of polymers onto hair surfaces
发明人：BREAKSPEAR STEVEN; NÖCKER BERND; WEITZEL JOHANNA; PAEZ JULIETA; PEARSON SAMUEL; BRÃœCK STEFAN; CAMPO ARANZAZU DEL
权利人:KAO CORP
摘要:The present invention is on polymers derivatized with an organic deposition-enhancing group for their enhanced deposition onto keratin fibers, especially human hair. The deposition-enhancing group is a di-hydroxyl phenolic compound with a spacer alkyl group bound to a reactive amine or carboxyl group, which reacts with one of the hydroxyl, carboxyl, primary and secondary amine groups on the polymeric backbone. The invention is on the method of synthesizing such compounds and compositions comprising the compounds.

专利号:US-6570019-B2
优先权日:2000-02-25
标 题:Cationic pyrrolo-pyrrol-derivatives, method for producing them and colorants for keratin fibers, containing these compounds
发明人：PASQUIER CECILE; WYSS PATRICK; BRAUN HANS-JUERGEN
权利人:WELLA AG
摘要:The object of the present invention are diketopyrrolopyrroles of the general formula (I)wherein, independently of one another, Q1 and Q2 represent an optionally substituted, aromatic, isocyclic or heterocyclic group with 5 to 14 atoms in the ring, the heterocyclic group containing at least one oxygen, nitrogen or sulfur atom, and the R1 and R2 groups, independently of one another represent hydrogen or a Y-B+A- group, with the proviso that at least one of the R1 and R2 groups is not hydrogen; B+ is an aromatic, aliphatic, alicyclic, aromatic heterocyclic or non-aromatic heterocyclic, quaternary ammonium group or a quaternary phosphonium group; Y is an optionally substituted linear or branched C1 to C6 alkylene group and A- is an anion; a method for their synthesis as well as agents, containing compounds of formula (I), for dyeing keratin fibers.