potassium hydrogencarbonate in chloroform 24.5 h; Ambient temperature;

1: 77 percent / sodium dithionite / methanol; aq. NH3 / 1.) 30 min, 2.) refrigerator, 1 h 2: 96 percent / potassium bicarbonate / CHCl3 / 24.5 h / Ambient temperature View Scheme

1: 70 percent / pyridine / 13 h / Ambient temperature 2: 77 percent / sodium dithionite / methanol; aq. NH3 / 1.) 30 min, 2.) refrigerator, 1 h 3: 96 percent / potassium bicarbonate / CHCl3 / 24.5 h / Ambient temperature View Scheme

1: 70 percent / pyridine / 13 h / Ambient temperature 2: 77 percent / sodium dithionite / methanol; aq. NH3 / 1.) 30 min, 2.) refrigerator, 1 h 3: 96 percent / potassium bicarbonate / CHCl3 / 24.5 h / Ambient temperature View Scheme