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Novel 3-phenyl/pyridinyl-<i>trans</i>-2-(aryl/heteryl)vinyl-3<i>H</i>-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

international journal of organic chemistry

3-Phenyl/Pyridinyl Derivatives of &amp;lt;i&amp;gt;Trans&amp;lt;/i&amp;gt;-2-(aryl/heteryl)vinyl-3&amp;lt;i&amp;gt;H&amp;lt;/i&amp;gt;-quinazolin-4-ones: Synthesis and Fluorescent Properties