oxygen; caesium carbonate; SIDip*HCl in toluene T=31 - 33°C; 15 h; Air atmosphere;

RhH(CO)(triphenylphosphine)3; 1,2-bis-(diphenylphosphino)ethane in chlorobenzene Inert atmosphere;

triethylamine in dichloromethane

1: CH2Cl2 / Ambient temperature 2: 1.) CF3SO3Me, 2.) N-methylmorpholine / 1.) ClCH2CH2Cl, RT, 5 min, 2.) ClCH2CH2Cl, 20 deg C, 1 h View Scheme

4-methyl-morpholine; methyl trifluoromethanesulfonate 1.) ClCH2CH2Cl, RT, 5 min, 2.) ClCH2CH2Cl, 20 deg C, 1 h; Yield given. Multistep reaction;

hydridotetrakis(triphenylphosphine)rhodium (Ph3P)4RhH; cis-DPPEthylene in chlorobenzene 3 h; Inert atmosphereReflux;

1: hydridotetrakis(triphenylphosphine)rhodium (Ph3P)4RhH; cis-DPPEthylene / chlorobenzene / 3 h / Inert atmosphere; Reflux 2: hydridotetrakis(triphenylphosphine)rhodium (Ph3P)4RhH; 1,2-bis-(diphenylphosphino)ethane / chlorobenzene / 3 h / Inert atmosphere; Reflux View Scheme