1: aqueous ethanol 2: Raney nickel; ethanol; ammonia / 15 °C / 69873.3 Torr / Hydrogenation View Scheme

1,10-phenanthroline; tetrabutyl ammonium fluoride; cupric trifluoroacetate in dimethyl sulfoxide T=130°C; 8 h; Inert atmosphereSealed tube;

1: With copper diacetate; palladium diacetate; trifluoroacetic acid in ethylene glycol dimethyl ether T=120°C; 24 h; Inert atmosphereSealed tube; 2: With potassium carbonate in ethylene glycol dimethyl ether; water T=20°C;

1: aqueous ethanol 2: Raney nickel; ammonia; methanol / Hydrogenation View Scheme

copper diacetate in acetonitrile T=60°C; 3 h;