Mono- and difluorinations of sulfides were achieved using a novel fluorinating reagent, IF5–Et3N–3HF. The reagent is applicable for substrates having various electron-withdrawing groups, such as an ester, amide, ketone, nitrile, sulfone, or trifluoromethyl. Because more than one fluorine atom on IF5 is used, a large excess amount of the reagent is not necessary, even for the difluorination reaction.
利用新型
氟化试剂 IF5-Et3N-3HF 实现了
硫化物的单
氟化和二
氟化。该试剂适用于具有各种夺电子基团的底物,如酯、酰胺、酮、腈、砜或三
氟甲基。由于 IF5 上使用了一个以上的
氟原子,因此即使进行二
氟化反应,也无需过量使用该试剂。