Oxidative additions on indenyl rhodium complexes bearing the hemilabile homoallyldiphenylphosphane (HADPP) ligand

Oxidative additions of halogens and methyl iodide on complex [Rh(η5-C9H7){κ3(P,C,C′)-Ph2PCH2CH2CHdouble bond; length as m-dashCH2}] (1) have been carried out. The addition of bromine leads to the complexes [Rh(η5-C9H7)Br2{κ1(P)-Ph2PCH2CH2CHdouble bond; length as m-dashCH2}] (4) or [Rh(η5-C9H7)Br2{κ1(P)-Ph2PCH2CH2CHBrCH2Br}] (5) depending on the reaction conditions. Studies on the oxidative addition of methyl iodide show up the influence of the ring slippage of the five member ring of the indenyl ligand in these reactions.