Ritesh G. Patel, Manish P. Patel, Ranjan G. Patel
Jul 1, 2005
Citations
0
Influential Citations
13
Citations
Journal
Dyes and Pigments
Abstract
Abstract 3,6-Disubstituted fluorans containing 4(3 H )-quinazolinone-3-yl and diethylamino groups were synthesized by reacting 4-diethylamino-2-hydroxy-2′-carboxybenzophenone with various 4(3 H )-quinazolinones in the presence of dehydration condensing agent. These 4(3 H )-quinazolinones were derived by reacting various substituted benzoxazine-4-ones with 3-aminophenol. All the fluorans have been identified by conventional methods (IR, 1 H NMR), elemental analysis, and UV–visible spectroscopy in organic solvent and 95% acetic acid. These fluorans have been applied in reversible thermochromic materials.