Copper-catalyzed regioselective fluorination of allylic halides

Abstract

Group activity: A novel copper-catalyzed fluorination of internal allylic bromides and chlorides has been developed by using Et3N⋅3 HF as the fluorine source. A functional group (FG) within the substrate is required to achieve the allylic fluorination, and a variety of secondary allylic fluoride compounds can be accessed in good yield with excellent regioselectivity.

Keywords: allylic halides; copper catalysis; fluorination; regioselectivity; synthetic methods.