dichloro bis(acetonitrile) palladium(II) in tetrahydrofuran T=25°C; 14 h;

(S,R)-axial-phox; caesium carbonate; (2,2,6,6-tetramethyl-3,5-heptanedionate)Rh(ethylene)2 in toluene T=40°C; 12 h; Title compound not separated from byproducts;

1: 93 percent / <PdCl2(CH3CN)2> / tetrahydrofuran / 14 h / 25 °C 2: 76 percent / K2CO3, MeOH / 6 h / 25 °C 3: 97 percent / pyridine / CH2Cl2 / 18 h / Heating 4: <W(CO)3(η6-C7H8)>, 2-2'-bipyridine / tetrahydrofuran / 18 h / 60 °C View Scheme