1: 67 percent / hydrogen peroxide, acetic acid / 38 h / 20 °C 2: 97 percent / potassium carbonate / acetone; H2O; diethyl ether / 1.) 20 deg C, 24 h, 2.) 0 deg C, 10 min View Scheme

1: 38 percent / sodium periodate / methanol / 3 h / 0 - 20 °C 2: 2.) potassium carbonate / 1.) acetone, 20 deg C, 4 h, 2.) acetone, water, 20 deg C, 24 h View Scheme

With  sodium periodate in  methanol T=0 - 20°C; 3 h;