osmium(VIII) oxide; silver nitrate in hexane; tert-butyl alcohol T=40°C; 22 h; Yields of byproduct given;

osmium(VIII) oxide; sodium methylate; silver nitrate 1.) t-butyl alcohol/hexane, 40 deg C, 22 h, 2.) methanol, 15 min; Yield given. Multistep reaction. Yields of byproduct given;