1,3-bis-(diphenylphosphino)propane; caesium carbonate; di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium in toluene T=150°C; 72 h; Title compound not separated from byproducts;

in benzene 24 h; Ambient temperature;

sodium hydride in dichloromethane 0.5 h;

1: 80 percent / diethyl ether / 2 h / Heating 2: 65 percent / 5percent NaOH / H2O; CH2Cl2 / 2 h View Scheme

1: With 1,3-bis-(diphenylphosphino)propane; caesium carbonate; di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium in toluene T=150°C; 72 h; 2: With hydrogen; palladium on activated charcoal in diethyl ether P=760 Torr; 12 h;

1,3-bis-(diphenylphosphino)propane; caesium carbonate; di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium in toluene T=150°C; 72 h; Title compound not separated from byproducts;