DefinePK

DefinePK hosts the largest index of Pakistani journals, research articles, news headlines, and videos. It also offers chapter-level book search.

Select Collection

?NEW DISPERSE DYES FROM SUBSTITUTED PYRIDINES. PART-I. SYNTHESIS OF METHYL-4, 6,DmYDROXY-20xo-l-PHENYL-5-ARYLAZOPYRIDINE-3-CARBOXYLATE AND THEIR DERIVATIVES

Article Information

Get PDF View Article
Login to Add in Library

Title: ?NEW DISPERSE DYES FROM SUBSTITUTED PYRIDINES. PART-I. SYNTHESIS OF METHYL-4, 6,DmYDROXY-20xo-l-PHENYL-5-ARYLAZOPYRIDINE-3-CARBOXYLATE AND THEIR DERIVATIVES

Authors: Rasheeda Parveenr, Muhammad Aleem Ahmed, Shaheen A Husain, Shahida Parveen

Journal: Pakistan Journal of Scientific and Industrial Research (Series B: Biological Sciences)

HEC Recognition History
Category From To
Y 2023-07-01 2024-09-30
Y 2022-07-01 2023-06-30
Y 2021-07-01 2022-06-30
Y 2020-07-01 2021-06-30
Y 1900-01-01 2005-06-30

Publisher: PCSIR Scientific Information Centre

Country: Pakistan

Year: 2001

Volume: 44

Issue: 4

Language: English

Keywords: Azo dyesSubsituted pyridinesDisperse dyesSpectroscopic studies.

Categories
Spectroscopy (420) Dye Chemistry (34) Organic Chemistry (862) Chemical Engineering (4680) Materials Science (8025)

Abstract

The reaction of methyl-a, 6, dihydroxy-2oxo, l-phenyl pyridine-3 carboxylate (iii) with diazotized aromatic amines (ii), yielded compounds (iv) showing absorption bands between \l11IX 570-590 nm, characteristic of azo dyes. An aqueous solution of (iv) having a non-ionic dispersing agent and a dye carrier at pH 5-6 and temperature 135°C and 75°C when applied to polyester and acetate fiber respectively furnished beautiful colours ranging from orange to yellow.

Paper summary is not available for this article yet.

Loading PDF...

Loading Statistics...