Continuous-Flow Synthesis of Perfluoroalkyl Ketones via Perfluoroalkylation of Esters Using HFC-23 and HFC-125 under a KHMDS–Triglyme System
作者:Yamato Fujihira、Hiroto Iwasaki、Yuji Sumii、Hiroaki Adachi、Takumi Kagawa、Norio Shibata
DOI:10.1246/bcsj.20220162
日期:2022.9.15
chemical transformation of two HFCs, viz. HFC-23 and HFC-125, based on the continuous-flow perfluoroalkylation of esters to synthesize the pharmaceutically and agrochemically vital trifluoromethyl and pentafluoroethyl ketones. The combination of a potassium base and a glyme solvent system is found to be the most effective. The proposed method is attractive for industrial use because it allows the consumption
氢氟烃 (HFC) 广泛用作冰箱和空调中的冷却剂以及工业过程中的溶剂。然而,它们的应用受到其高全球变暖潜能值的限制。因此,迫切需要 HFC 分解和有效利用的策略。在这里,我们描述了两种 HFC 的化学转化方法,即。HFC-23 和 HFC-125,基于酯的连续流动全氟烷基化合成医药和农业化学重要的三氟甲基和五氟乙基酮。发现钾碱和甘醇二甲醚溶剂系统的组合是最有效的。所提出的方法对工业用途很有吸引力,因为它可以消耗大量的 HFC,促进高价值药用化合物的合成,