sodium periodate in diethyl ether; water 2 h; Ambient temperature;

1: 85 percent / sodium metaperiodate, water / diethyl ether / 3 h / Ambient temperature 2: 83 percent / sodium borohydride / methanol / 2 h / 0 °C View Scheme

1: 85 percent / sodium metaperiodate, water / diethyl ether / 3 h / Ambient temperature 2: 1.) lithium 2,2,6,6-tetramethylpiperidine / 1.) THF, RT, 30 min, 2.) THF, 3 h View Scheme