hydrogen; palladium on activated charcoal in acetic acid P=1838.8 Torr;

1: 60 percent / methanol / 24 h / Heating 2: 70 percent / lithium aluminium hydride / tetrahydrofuran / 72 h / Heating 3: 60 percent / triethylamine / benzene / Heating 4: 68 percent / hydrogen / 10percent Pd-C / acetic acid / 1838.8 Torr View Scheme

1: 60 percent / triethylamine / benzene / Heating 2: 68 percent / hydrogen / 10percent Pd-C / acetic acid / 1838.8 Torr View Scheme

1: 70 percent / lithium aluminium hydride / tetrahydrofuran / 72 h / Heating 2: 60 percent / triethylamine / benzene / Heating 3: 68 percent / hydrogen / 10percent Pd-C / acetic acid / 1838.8 Torr View Scheme

triethylamine in acetone 48 h; Ambient temperature;