hydrogenchloride; sodium cyanoborohydride in methanol 0.5 h; Ambient temperaturepH=3;

1: 64 percent / SnCl4 2: 78 percent / diethyl ether / 1) Ether 3: 79 percent / Sodium cyanoborohydride, 6N aq.HCl / methanol / 0.5 h / Ambient temperature; pH=3 View Scheme

1: 78 percent / diethyl ether / 1) Ether 2: 79 percent / Sodium cyanoborohydride, 6N aq.HCl / methanol / 0.5 h / Ambient temperature; pH=3 View Scheme