3-Phenyl/Pyridinyl Derivatives of <i>Trans</i>-2-(aryl/heteryl)vinyl-3<i>H</i>-quinazolin-4-ones: Synthesis and Fluorescent Properties
3-Phenyl/Pyridinyl Derivatives of <i>Trans</i>-2-(aryl/heteryl)vinyl-3<i>H</i>-quinazolin-4-ones: Synthesis and Fluorescent Properties作者机构:Department of Organic Chemistry Chemical Technology Institute Urals Federal University Ekaterinburg Russia Postovsky Institute of Organic Synthesis Ural Branch of the Russian Academy of Sciences Ekaterinburg Russia
出 版 物:《International Journal of Organic Chemistry》 (有机化学国际期刊(英文))
年 卷 期:2012年第2卷第1期
页 面:56-63页
主 题:Styryl Benzazines Fluorinated Quinazolin-4-Ones UV and FL Spectra X-Ray Trans-cis-Isomerisation 2-Methylquinazolinones 2-Methyl-3 1-benzoxazinones
摘 要: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.