Iridium-catalyzed borylation of phenacenes with bis(pinacolato)diboron proceeds either in an edge-selective manner for diborylation or an edge/side-selective manner for tetraborylation. Multiply borylated [n]phenacenes (n = 3-5) were synthesized in reasonable yields. (C) 2011 Elsevier Ltd. All rights reserved.
Iridium-catalyzed borylation of phenacenes with bis(pinacolato)diboron proceeds either in an edge-selective manner for diborylation or an edge/side-selective manner for tetraborylation. Multiply borylated [n]phenacenes (n = 3-5) were synthesized in reasonable yields. (C) 2011 Elsevier Ltd. All rights reserved.