Nature Communications ( IF 14.7 ) Pub Date : 2024-09-09 , DOI: 10.1038/s41467-024-52035-9 Pankaj Bhattarai 1 , Mohammed K Abd El-Gaber 1, 2 , Suvajit Koley 1, 3 , Ryan A Altman 1, 4
Trifluoromethyl arenes (Ar–CF3) are amongst the commonly encountered fluorinated substructures in pharmaceutical, agrochemical, and material sciences. However, predominant methods to access Ar–CF3 possess several limitations, including harsh conditions, lack of availability of substrates, and poor regioselectivity, which combined restrict access to desirable highly functionalized Ar–CF3-containing compounds. To expand the scope of accessible Ar–CF3-based molecules, we present an orthogonal deoxyfluoroalkylation/aromatization approach that exploits readily accessible and programable cyclohexan(en)one substrates, which undergo a reliable 1,2-addition reaction with the Ruppert-Prakash reagent (TMSCF3) followed by aromatization to deliver highly functionalized Ar–CF3 compounds in a one/two-pot sequence. This general strategy enables access to highly substituted Ar–CF3-containing molecules that are difficult, expensive, and/or impossible to access by current synthetic methods.
中文翻译:
环己酮的脱氧三氟甲基化/芳构化以获得高度取代的三氟甲基芳烃
三氟甲基芳烃 (Ar–CF 3 ) 是制药、农业化学和材料科学中常见的氟化子结构之一。然而,获取Ar-CF 3的主要方法具有一些局限性,包括苛刻的条件、缺乏可用的底物以及较差的区域选择性,这些限制了获得所需的高功能化的含Ar-CF 3化合物。为了扩大可接近的Ar-CF 3基分子的范围,我们提出了一种正交脱氧氟烷基化/芳构化方法,该方法利用易于接近和可编程的环己酮底物,该底物与Ruppert-Prakash进行可靠的1,2加成反应试剂(TMSCF 3 ),然后进行芳构化,以一锅/两锅顺序提供高度功能化的 Ar-CF 3化合物。这种通用策略使得能够获得高度取代的含Ar-CF 3分子,而通过当前的合成方法很难、昂贵和/或不可能获得这些分子。