pyridine hydrochloride in ethylene glycol 0.5 h; Heating;

1: 95 percent / H2SO4 / 5 h / Heating 2: 80 percent / TiCl4 / CH2Cl2 / 4 h / 0 °C 3: 99 percent / BH3*THF / tetrahydrofuran / 2.5 h / Heating 4: 40 percent / pyridine hydrochloride / ethane-1,2-diol / 0.5 h / Heating View Scheme

1: 80 percent / TiCl4 / CH2Cl2 / 4 h / 0 °C 2: 99 percent / BH3*THF / tetrahydrofuran / 2.5 h / Heating 3: 40 percent / pyridine hydrochloride / ethane-1,2-diol / 0.5 h / Heating View Scheme

1: 99 percent / BH3*THF / tetrahydrofuran / 2.5 h / Heating 2: 40 percent / pyridine hydrochloride / ethane-1,2-diol / 0.5 h / Heating View Scheme