Aryl fluorides from the reaction of boron trifluoride with aryl-lead(IV) triacetates, which may be generated in situ from aryltrimethylsilanes, triarylboroxines, and arenes

Abstract

Aryl-lead(IV) triacetates react at room temperature with BF₃·Et₂O to give the corresponding aryl fluoride in moderate to good yields; triarylboroxines, electron-rich aryltrimethylsilanes, and some arenes, which yield aryl–lead(IV) triacetates in acid catalysed reactions with lead tetra-acetate, may be converted directly into aryl fluorides when stirred with lead tetra-acetate in BF₃·Et₂O.