Diphenyl (4′-(Aryldiazenyl)biphenyl-4-ylamino)(pyridin-3-yl)methylphosphonates as Azo Disperse Dyes for Dyeing Polyester Fabrics
release_tbb45omsqne5vf2zhc3b6g6yf4
by
Mohamed F. Abdel-Megeed, Mohamed M. Azaam, Gamal A. El-Hiti
Abstract
Diphenyl (4′-aminobiphenyl-4-ylamino)(pyridin-3-yl)methylphosphonate<jats:bold>(1)</jats:bold>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<jats:bold>1</jats:bold>gave the corresponding diazonium salt<jats:bold>2</jats:bold>which was coupled with several hydroxyl or amino compounds to give the corresponding azo dyes<jats:bold>3</jats:bold>–<jats:bold>8</jats:bold>in 82–88% yields after crystallization. The dyes produced were applied to polyesters as disperse dyes and their fastness properties were elevated.
In application/xml+jats
format
Archived Files and Locations
application/pdf 1.6 MB
file_o3ine2zdoffktlaj34nyspsayi
|
downloads.hindawi.com (publisher) web.archive.org (webarchive) |
access all versions, variants, and formats of this works (eg, pre-prints)
Crossref Metadata (via API)
Worldcat
SHERPA/RoMEO (journal policies)
wikidata.org
CORE.ac.uk
Semantic Scholar
Google Scholar