We report the sustainable and efficient synthesis of a new type of quinoline derivatives bearing one or two SO₂CF₃ groups. The protocol is metal-, catalyst- and irradiation-free, involves the use of readily available and stable precursors, and avoids the formation of side products. Also, the mild conditions of the process allow the tolerance of a wide range of functional groups.

中文翻译：

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一种便捷的正式[4+2]杂环化路线制备双(三氟甲基)四氢喹啉

_{我们报道了一种带有一个或两个SO 2} CF ₃基团的新型喹啉衍生物的可持续和高效合成。该方案不含金属、催化剂和辐射，涉及使用容易获得且稳定的前体，并避免副产物的形成。此外，该过程的温和条件允许广泛的官能团的耐受性。