Journal
DYES AND PIGMENTS
Volume 77, Issue 2, Pages 451-456Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2007.07.009
Keywords
barbituric acid; azo barbituric acid; disazo dyes; pyrazole; absorption properties; diazo-coupling reaction
Ask authors/readers for more resources
5-Amino-4-arylazo-3-methy]-IH-pyrazoles were diazotised and coupled with barbituric acid to provide 13 novel heterocyclic disazo barbituric acid dyes that were characterized by elemental analysis and spectral methods. The effects of varying the pH and solvent on the absorption of the dyes substituted with electron-withdrawing and electron-donating groups at their o-, m-, p-position were examined in detail. (c) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available