Solvatochromic Fluorescent 2-Substituted 3-Ethynyl Quinoxalines: Four-Component Synthesis, Photophysical Properties, and Electronic Structure
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
2-取代的3-乙炔基喹喔啉可以通过从富电子的π-亲核试剂,草酰氯,末端炔烃和1,2-二氨基芳烃开始的连续四组分合成以通常优异的产率快速合成。标题化合物是高度荧光的,具有明显的发射溶剂变色现象。通过DFT理论水平的计算,进一步证实了光物理性质和电子结构。