Selective Transformation ofN α-Fluorenylmethoxycarbonyl (Fmoc) Groups intoN α-Benzyloxycarbonyl (Z) Groups

Abstract
Fluorenylmethyl carbamates may be efficiently and selectively converted into benzyl carbamates by potassium fluoride/triethyl amine in the presence of N-benzyloxycarbonyloxy-5-norbornene-2,3-dicarboximide (BCN).