Electron-Deficient Fluoroarene-Mediated Synthesis of Trifluoromethyl Ketones from Carboxylic Acids
作者:Madhukar S. Said、Nilesh S. Khonde、Pradeep Kumar、Jayant M. Gajbhiye
DOI:10.1021/acs.orglett.2c04318
日期:2023.2.24
Fluoroarene-mediated trifluoromethylation of carboxylic acids for the synthesis of trifluoromethyl ketones is disclosed. The fluoroarene activates the acid group and generates the fluoride source in situ for the trifluoromethylation reaction. The present protocol is safe and metal-free, operates under mild reaction conditions, and does not require any external additives to generate trifluoromethyl
公开了用于合成三氟甲基酮的氟芳烃介导的羧酸三氟甲基化。氟代芳烃激活酸基并原位生成氟化物源用于三氟甲基化反应。本协议安全且不含金属,在温和的反应条件下运行,不需要任何外部添加剂即可产生三氟甲基阴离子。目前的转化提供了良好的官能团耐受性,并且在分批和连续流中分别提供了 92% 和 88% 的三氟甲基酮收率。