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- W1576045377 abstract "The 2-aryl-6,8-dibromoquinazolin-4(3H)-ones were prepared in a single-pot operation by condensing 6,8-dibromoanthranilamide and aryl aldehydes in the presence of molecular iodine in ethanol. Treatment of the 2-aryl-6,8-dibromoquinazolin-4(3H)-ones with thionylchloride in the presence of dimethylformamide afforded the corresponding 2-aryl-4-chloro-6,8-dibromoquinazolines. Palladium(0)-copper iodide catalysed Sonogashira cross-coupling reaction of 2-aryl-4-chloro-6,8-dibromoquinazolines with terminal alkynes at room temperature afforded series of 2-aryl-6,8-dibromo-4-(alkynyl)quinazolines. Further transformation of the 2-aryl-6,8-dibromo-4-(phenylethynyl)quinazolines via Suzuki-Miyaura cross-coupling with arylboronic acids occurred without selectivity to afford the corresponding 2,6,8-triaryl-4-(phenylethynyl)quinazolines. The compounds were characterized using a combination of NMR (1H and 13C) and IR spectroscopic techniques as well as mass spectrometry. The absorption and emission properties of 2,6,8-triaryl-4-(phenylethynyl)quinazolines were determined in solution." @default.
- W1576045377 created "2016-06-24" @default.
- W1576045377 creator A5080335544 @default.
- W1576045377 date "2014-06-01" @default.
- W1576045377 modified "2023-09-24" @default.
- W1576045377 title "2-Aryl-6,8-Dibromo-4-Chloroquinazoline as scaffold for the synthesis of Novel 2,6,8-Triaryl-4-(Phenylethynyl)Quinazolines with potential photophysical properties" @default.
- W1576045377 hasPublicationYear "2014" @default.
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