[{(η5-C5Me5)RhCl}2(μ-Cl)2]; caesium acetate; acetic acid in dichloromethane T=20°C;

1: sodium carbonate / ethyl acetate; water / 2 h / 0 °C 2: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; caesium acetate; acetic acid / dichloromethane / 20 °C View Scheme

1: copper(l) chloride; pyridine / 1,2-dichloro-ethane / 48 h / 20 °C / |Molecular sieve 2: hydrazine hydrate / methanol; chloroform / 20 °C 3: sodium carbonate / ethyl acetate; water / 2 h / 0 °C 4: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; caesium acetate; acetic acid / dichloromethane / 20 °C View Scheme

1: hydrazine hydrate / methanol; chloroform / 20 °C 2: sodium carbonate / ethyl acetate; water / 2 h / 0 °C 3: [{(η5-C5Me5)RhCl}2(μ-Cl)2]; caesium acetate; acetic acid / dichloromethane / 20 °C View Scheme