Under mild conditions, a series of α,α-difluoro-β-ketoamides were synthesized with Selectfluor® as the F+ source in the presence of K2CO3 in the mixed-solvent of water and PEG-400 (VH2O:VPEG-400=3:1), without additional phase-transfer catalyst. By using this approach, most cases examined in this study proceeded in nearly quantitative conversions regardless of the electronic nature of the substituent
在温和条件下,一系列的α,α二氟β酮酰胺用的Selectfluor合成®的F +的K的存在源2 CO 3在水和PEG-400混合溶剂(伏特H2个Ø:伏特聚乙二醇400=3:1个),无需额外的相转移催化剂。通过使用这种方法,大多数情况下,在这项研究中取代形式的电子性质的几乎定量进行转换,无论检查。