e annulation reaction for the efficient construction of 2-(trifluoromethyl)quinazolin-4(3H)-ones has been developed. This transformation employs readily available isatins and trifluoroacetimidoyl chlorides as the starting materials, providing a facile and practical route to diverse biologically relevant quinazolin-4(3H)-one derivatives. A plausible reaction pathway has been proposed based on the mechanistic
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。