Regioselective Electrophilic Fluorination of Alkenyl and Related Stannanes Using Caesium Fluoroxysulfate

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Abstract
Caesium fluoroxysulfate in methanol has been shown to effect the regioselective fluoro-destannylation of alkenyl and heteroaryl substrates under mild reaction conditions. Substrates in which the tin group is attached to a benzylic centre gave anomolous products, the α-fluoroketones.