A Direct Method for Synthesis of Fluorinated Quinazolinones and Quinoxalines Using Fluorinated Acids without Metals or Additives
作者:Chen Ma、Shichen Li、Xueyan Lv、Jianing Ren、Lei Feng
DOI:10.1055/a-1824-6352
日期:2022.9
ketones, and heterocycles has been studied constantly in recent decades. Herein, a direct method using trifluoroacetic acid as a CF3 source for the synthesis of 2-(trifluoromethyl)quinazolin-4-ones and 4-(trifluoromethyl)pyrrolo/indolo[1,2-a]quinoxalines without any catalysts or additives is reported; a wide range of fluorinated compounds were obtained in 52%–94% yield.
三氟甲基仅存在于合成化合物中。由于该组独特的生物活性,近几十年来一直在不断研究烷烃、芳烃、烯烃、醛和酮等不饱和化合物以及杂环的三氟甲基化。在此,使用三氟乙酸作为 CF 3源用于合成 2-(三氟甲基)喹唑啉-4-酮和 4-(三氟甲基)吡咯并/吲哚并[1,2- a ]喹喔啉的直接方法是,无需任何催化剂或添加剂。报告;以 52%–94% 的收率获得了范围广泛的含氟化合物。