This study reports an oxytrifluoromethylation method for construction of oxazoles and furans motif and the concurrent incorporation of a 2,2,2‐trifluoroethyl group at the aromatic C5‐position. High‐valent copper(III) trifluoromethyl compounds are crucial to this reaction that induces oxy‐trifluoromethylation of alkynes with a pendant amide/enol group functioning as the oxygen‐nucleophile. A wide substrate scope is demonstrated with high efficiency and with broad functional group tolerance. Late‐stage functionalization of dehydrocholic acid, a complex drug compound, is accomplished to show the potential of this method for practical drug design.

中文翻译：

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通过炔基氧化三氟甲基化合成2,2,2-三氟乙基恶唑，恶唑啉和呋喃

这项研究报告了一种氧三氟甲基化方法，用于构建恶唑和呋喃基序，并在芳族C5位上同时引入2,2,2-三氟乙基。高价的三氟甲基铜（III）对于此反应至关重要，该反应可诱导具有侧链酰胺/烯醇基团的炔烃的氧-三氟甲基化，并起氧亲核试剂的作用。高效率和宽泛的官能团耐受性证明了广泛的底物范围。完成了脱氢胆酸（一种复杂的药物化合物）的后期功能化，以显示该方法在实际药物设计中的潜力。