作者:Charlotte F. Gers、Jan Nordmann、Ceyda Kumru、Walter Frank、Thomas J. J. Müller
DOI:10.1021/jo4025978
日期:2014.4.18
2-Substituted 3-ethynylquinoxalines can be rapidly synthesized in generally excellent yields by a consecutive four-component synthesis starting from electron-rich π-nucleophiles, oxalyl chloride, terminal alkynes, and 1,2-diaminoarenes. The title compounds are highly fluorescent with a pronounced emission solvatochromism. The photophysical properties and electronic structure were additionally corroborated