10 50 EtZO/THF 40 81.5 3.0 14.2 or Et20/THF 25 mL/25 mL. CDetermined by analytical GC. 9, 12-diiodo-o-carborane (2) without complicating side products. Finally, we show that the palladium-catalyzed coupling of Grignard reagents4 is effective in converting these iodo compounds into B-alkylated o-carboranes, thus providing a convenient synthesis of 3-alkyl-o- carboranes and 9, 12-dialkyl-o-carboranes. 1Iodo-o-carborane (1). The overall strategy is ...