Diphenyl 4′-Aryldiazenylbiphenyl-4-ylaminopyridin-3-ylmethylphosphonates as Azo Disperse Dyes for Dyeing Polyester FabricsReport as inadecuate




Diphenyl 4′-Aryldiazenylbiphenyl-4-ylaminopyridin-3-ylmethylphosphonates as Azo Disperse Dyes for Dyeing Polyester Fabrics - Download this document for free, or read online. Document in PDF available to download.

Journal of ChemistryVolume 2013 2013, Article ID 308419, 5 pages

Research Article

Department of Chemistry, Faculty of Science, University of Tanta, Tanta 31527, Egypt

School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK

Received 17 June 2012; Accepted 23 August 2012

Academic Editor: Ana Cristi Basile Dias

Copyright © 2013 Mohamed F. Abdel-Megeed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Diphenyl 4′-aminobiphenyl-4-ylaminopyridin-3-ylmethylphosphonate 1 was synthesized in 88% yield from reaction of pyridine-3-carboxaldehyde with benzidine and triphenylphosphite in the presence of titanium tetrachloride as a catalyst. Diazotization of 1 gave the corresponding diazonium salt 2 which was coupled with several hydroxyl or amino compounds to give the corresponding azo dyes 3–8 in 82–88% yields after crystallization. The dyes produced were applied to polyesters as disperse dyes and their fastness properties were elevated.





Author: Mohamed F. Abdel-Megeed, Mohamed M. Azaam, and Gamal A. El-Hiti

Source: https://www.hindawi.com/



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