1: 68 percent / ruthenium dioxide hydrate, 10percent aqueous NaIO4 / ethyl acetate / 0.25 h / Ambient temperature 2: 95 percent / trifluoroacetic acid / CH2Cl2 / 1 h / Ambient temperature View Scheme

With  ruthenium(IV) oxide; sodium periodate in  ethyl acetate 0.25 h;  Ambient temperature;