Journal
DYES AND PIGMENTS
Volume 80, Issue 1, Pages 47-52Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2008.05.001
Keywords
3-Aminocrotononitrile; Malononitrile; Pyrazole; Disazo dyes; Antimicrobial activity; Solvatochromism
Funding
- PAUBAP [2006FBE006]
Ask authors/readers for more resources
Aniline derivatives were diazotized and coupled with 3-aminocrotononitrile to give the corresponding 2-arylhydrazono-3-ketiminobutyronitriles. Cyclization of these arylhydrazono derivatives with hydrazine monohydrate afforded 5-amino-4-arylazo-3-methyl-1H-pyrazoles which were subsequently diazotised and coupled with malononitrile to yield a series of pyrazolylhydrazonomalononitriles. These compounds were then reacted with hydrazine monohydrate to provide 10, novel, heterocyclic disazo dyes, which were characterized by elemental analysis and spectral methods. The antimicrobial activity and absorption characteristics of the dyes were also examined in detail. (C) 2008 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