Scheme 1.
Palladium-catalyzed ortho-halogenation of aryl silanes. [a] Yield of isolated product. [b] See Supporting Information for experimental details. [c] Reaction was performed in PrCN at 100°C. [d] Reaction was performed without PhI(OAc)2 and with 1 equivalent of NIS. Boc = tert-butoxycarbonyl.