Thiourea‐Catalyzed Enantioselective Fluorination of β‐Keto Esters

Abstract Bifunctional chiral thioureas have been successfully used as organocatalysts in enantioselective fluorinations of β‐keto esters. The corresponding products could be obtained with good to excellent enantioselectivity in high yields by using N ‐fluorobisbenzenesulphonimide (NFSI) as fluorination reagent.