Synthesis and characterization of dyes exemplified by 2-arylidene-1-dicyanomethyleneindane

Authors
Asiri, AM
Citation
Am. Asiri, Synthesis and characterization of dyes exemplified by 2-arylidene-1-dicyanomethyleneindane, DYE PIGMENT, 42(3), 1999, pp. 209-213
Citations number
4
Categorie Soggetti
Chemical Engineering
Journal title
DYES AND PIGMENTS
ISSN journal
01437208 → ACNP
Volume
42
Issue
3
Year of publication
1999
Pages
209 - 213
Database
ISI
SICI code
0143-7208(19990611)42:3<209:SACODE>2.0.ZU;2-3
Abstract
The synthesis of methine dyes formed by Knoevenagel condensation of aromati c aldehydes with 1-dicyanomethylene indane 2 afforded a novel series of dye s absorbing in the region 490-593 nm. Substituents on the aromatic aldehyde moiety have a significant effect on the visible absorption maxima of the d yes; increasing the solvent polarity also had a pronounced effect on the ab sorption maxima. (C) 1999 Elsevier Science Ltd. All rights reserved.