Synthesis, photochemical and luminescent properties of (E)-2-(2-hydroxyarylethylene)-3-phenylquinazolin-4(3H)-ones
作者： I. G. Ovchinnikova , G. A. Kim , E. G. Matochkina , M. I. Kodess , N. V. Barykin
DOI: 10.1007/S11172-014-0764-7
关键词:
摘要: Photoinduced transformations of 2-styrylquinazolinones in solutions were studied using absorption and NMR spectroscopy methods. A possibility control the photochemical isomerization rate quinazolinone 2-(hydroxyaryl)ethenyl derivatives by changing pH medium was demonstrated. The bases solvent nature also affect luminescence intensity these compounds wavelength range 550—650 nm. differences steric organization ortho-hydroxystyryldiazinone system crystals related to turn aryl group found. Their influence on competing processes transformation ethylene fragment shown. fact reversible photo/thermal E-Z-isomerization established for (E)-2-(2-hydroxystyryl)-3-phenylquinazolin-4(3H)-one.
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