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ChemInform Abstract: Synthesis and Application of Some Azo and Azomethine Dyes Containing Pyrazolone Moiety
- Source :
- ChemInform. 40
- Publication Year :
- 2009
- Publisher :
- Wiley, 2009.
-
Abstract
- 3-Amino-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (1) was used as starting material for the synthesis of a number of azo compounds 3a–3c and azomethine derivative 4. The deblocking of 3a–3c and 4 gave rise to 5a–5c and 6 in which a free amino was revealed. The diazonium salts of 5a–5c and 6 were coupled with several phenols to produce a number of bis azo compounds 7a–7c and 8a–8c with azomethine in position 4 and azoic group in position 3. The prepared dyes were structurally confirmed by elemental analysis, spectral methods and applied to different fibers (wool, polyester and blend of wool/polyester) as disperse dyes and their fastness properties were measured.
Details
- ISSN :
- 15222667 and 09317597
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- ChemInform
- Accession number :
- edsair.doi...........2f67220d911aaa59e87d4b6eb7c943ba