1: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; silver hexafluoroantimonate; copper diacetate; silver carbonate / 1,4-dioxane / 12 h / 110 °C / |Schlenk technique; |Inert atmosphere 2: potassium hydroxide / tetrahydrofuran; ethanol / |Reflux 3: methylmagnesium bromide / diethyl ether / 1.5 h / 0 - 20 °C / |Reflux 4: potassium hydroxide / 24 h View Scheme

1: DMAP; Et3N / CH2Cl2 / 12 h / 20 °C 2: 55 percent / pyridine / toluene / 4 h / Heating 3: 75 percent / Grubbs catalyst / toluene / 4 h / 80 °C 4: 80 percent / O2 / Pd/C / tetrahydrofuran / 6 h / Heating View Scheme

air in benzene 0.833333 h; Irradiation;

1: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; silver hexafluoroantimonate; copper diacetate; silver carbonate / 1,4-dioxane / 12 h / 110 °C / |Schlenk technique; |Inert atmosphere 2: potassium hydroxide / tetrahydrofuran; ethanol / |Reflux View Scheme

1: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; silver hexafluoroantimonate; copper diacetate; silver carbonate / 1,4-dioxane / 12 h / 110 °C / |Schlenk technique; |Inert atmosphere 2: potassium hydroxide / tetrahydrofuran; ethanol / |Reflux 3: sodium hydride / tetrahydrofuran View Scheme

in benzene 0.833333 h; Irradiation;

air in benzene 0.833333 h; Irradiation;

in benzene 0.833333 h; Irradiation;

1: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; silver hexafluoroantimonate; copper diacetate; silver carbonate / 1,4-dioxane / 12 h / 110 °C / |Schlenk technique; |Inert atmosphere 2: potassium hydroxide / tetrahydrofuran; ethanol / |Reflux 3: methylmagnesium bromide / diethyl ether / 1.5 h / 0 - 20 °C / |Reflux View Scheme