1: <Rh((RS)-(6,6'-dimethylbiphenyl-2,2'-diyl)-bis(diphenylphosphine))((Z,Z)-1,5-cycloctadiene)>BF4 / tetrahydrofuran / 38 h / 90 °C 2: 96 percent / Ag2O View Scheme

1: 84 percent / diethyl ether / Heating 2: NaH / 1.) THF, reflux, 1 h, 2.) room temperature View Scheme

1: 39 percent / bis(dibenzylidenacetone)palladium, Ph3P, 1,2-bis(diphenylphosphine)ethane, AcOH / 20 h / Ambient temperature 2: NaH / 1.) THF, reflux, 1 h, 2.) room temperature View Scheme

sodium hydride 1.) THF, reflux, 1 h, 2.) room temperature; Yield given. Multistep reaction;