TITLE:
3-Phenyl/Pyridinyl Derivatives of Trans-2-(aryl/heteryl)vinyl-3H-quinazolin-4-ones: Synthesis and Fluorescent Properties
AUTHORS:
Emiliya V. Nosova, Tatyana V. Stupina, Galina N. Lipunova, Marina S. Valova, Pavel A. Slepukhin, Valery N. Charushin
KEYWORDS:
Styryl Benzazines; Fluorinated Quinazolin-4-Ones; UV and FL Spectra; X-Ray; Trans-cis-Isomerisation; 2-Methylquinazolinones; 2-Methyl-3, 1-benzoxazinones
JOURNAL NAME:
International Journal of Organic Chemistry,
Vol.2 No.1,
March
15,
2012
ABSTRACT: Novel 3-phenyl/pyridinyl-trans-2-(aryl/heteryl)vinyl-3H-quinazolin-4-ones 3a,b, 4a, 5a, 7a and their 6,7-difluoro de- rivatives 3c,d, 4b, 5b, 7b have been obtained by condensation of the correspondent 2-methylquinazolin-4-ones 1, 6 with aromatic (heterocyclic) aldehydes in the presence of ZnCl2 (AcONa) or by the reaction of 2-methyl-3,1-benzoxazin-4- ones 2 with the Shiff bases. Effects of aryl(heteryl) substituents on photophysical properties of (aryl/heteryl) quinazolinylethenes have been studied.