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含杂环芳胺的吡啶酮偶氮分散染料的研究 被引量:6

A Study on Pyridone Disperse Azo-dyes Derived from Heterocyclic diazo components
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摘要 以不同烷基取代的吡啶酮为偶合组分,分别采用3-氨基-5-硝基苯并异噻唑、2-氨基-6-硝基苯并噻唑以及对氯邻硝基苯胺为重氮组分合成了12个分散染料。用质谱、核磁、红外光谱确定了其结构。染料Ⅰ、Ⅱ为偶氮-醌腙异构体,Ⅲ为稳定的醌腙体。染料Ⅰ、Ⅱ、Ⅲ的最大吸收光谱分别为502nm、445nm、430nm;染料Ⅰ、Ⅱ受pH值影响较大.Ⅰ染料的pH值由2升到12时,最大吸由497nm升至581nm,变色点为pH=3-4;Ⅱ染料的pH值由3升至9时,最大吸收由430nm升至504nm,变色点为pH=4-5:而染料Ⅲ受pH值影响很小。 Twelve pyridone-based disperse dyes were synthesized from a variety of substituted pyridones as the coupling components and 3-amino-5-nitrobenzoisothiazole, 2-amino-6-nitrobenzothiazole and 2-chloro-4-nitroaniline as the diazo components respectively. They were characterized by MS, NMR and IR. Dye Ⅰ and Ⅱ were azo-quinohydrazone isomerides, Dye Ⅲ was a stable quinohydrazone. The maximum absorptions of Dye Ⅰ,Ⅱ and Ⅲ were found at 502,445 and 430 nm respectively. Dye Ⅰand Ⅱ were affected greatly by pH values. If pH raised from 2 to 12, the maximum absorption shifted from 497nm to 581nm, color changed at pH= 3-4; when pH raised from 3 to 9, the maximum absorption of Dye Ⅱ shifted from 430nm to 504nm, color changed at pH = 4-5; Dye Ⅲ, however, was less affected by pH.
出处 《染料与染色》 CAS 2004年第3期147-149,173,共4页 Dyestuffs and Coloration
关键词 吡啶酮 分散染料 可见光谱 pyridone disperse dye azo-quinohydrazone quinohydrazone
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参考文献2

  • 1Cheng L, Chen X, Gao K, et al. Colour and Constitution of Azo Dyes Derived from 2-Thioalkyl-4,6-diamino-pyrimidines and 3-Cyano-1,4-dimethyl6-hydroxy-2-pyridone as Coupling Components[J]. Dyes and Pigments.1986, 7(5): 373~389
  • 2Peng Q, Li M,Gao K, et al. Hydrazone-azo tautomerism ffpyddone azodyes: part Ⅰ-NMR spectra of tautomers[J]. Dyes and Pigments. 1990, 14(2): 89-99

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