Rapid construction of acridines via BF3•Et2O promoted cyclization of 2-phenylamino benzophenones
作者:Liuyang Deng、Ranran Guo、Lianjie Wang、Cao Yang、Zechao Wang
DOI:10.1016/j.tetlet.2022.154044
日期:2022.8
benzophenone promoted by BF3•Et2O has been developed. The reaction goes through the intramolecular Friedel–Crafts acylation and dehydration with a facile work-up procedure. It shows good functional group tolerance and the yields of acridines are mostly in range of 90–99 %. The efficiency of this reaction is tremendously high, which can be completed within 30 min. Gram-scale synthesis and synthetic
已经开发了一种由BF 3 •Et 2 O促进的从2-苯基氨基二苯甲酮快速构建吖啶的简明实用的策略。该反应通过一个简单的后处理程序通过分子内 Friedel-Crafts 酰化和脱水。它显示出良好的官能团耐受性,吖啶的产率大多在 90-99% 范围内。该反应效率极高,可在30分钟内完成。克级合成和合成应用实验说明了该方法作为合成工具的实用性。光致发光光谱表明这些吖啶是 OLED 的有希望的候选者,并使这种新方法在材料中具有巨大潜力。