1: trityl chloride; pyridine; silver oxide / Erwaermen des danach isolierten Reaktionsprodukts mit Chlorwasserstoff enthaltendem Aethanol 2: aqueous sodium hydrogencarbonate solution; oxygen; platinum/charcoal / 50 °C 3: palladium; ethyl acetate; methanol / Hydrogenation View Scheme

methanol; palladium; ethyl acetate Hydrogenation;

1: aqueous sodium hydrogencarbonate solution; oxygen; platinum/charcoal / 50 °C 2: palladium; ethyl acetate; methanol / Hydrogenation View Scheme

1: acetone; aqueous KOH-solution 2: palladium; ethyl acetate; methanol / Hydrogenation View Scheme

hydrogenchloride T=100°C; 8 h;

Bildung ueber mehrere Stufen;