5 Pd(II)/C(eggshell); hydrogen; triethylamine in tetrahydrofuran T=20°C; P=2068.65 Torr; 18 h;

1.1: sodium t-butanolate / tetrahydrofuran / 2 h / 0 °C / Inert atmosphere 1.2: 25 °C / Inert atmosphere 2.1: 5 Pd(II)/C(eggshell); hydrogen / ethanol / 2.5 h / 50 °C / 2068.65 Torr 3.1: AlCl3, aluminium chloride / n-heptane; dichloromethane / 0.75 h / -5 - 10 °C / Inert atmosphere 3.2: 0.5 h / -5 - 20 °C / Inert atmosphere 4.1: 5 Pd(II)/C(eggshell); hydrogen; triethylamine / tetrahydrofuran / 18 h / 20 °C / 2068.65 Torr View Scheme