1: 85 percent / 1 N aq. KOH / tetrahydrofuran; methanol / 1 h / Ambient temperature 2: 97 percent / N-methylmorpholine N-oxide, tetrapropylammonium perruthenate, molecular sieves 4 Angstroem / CH2Cl2 / 0.5 h / Ambient temperature View Scheme

potassium hydroxide in tetrahydrofuran; methanol 1 h; Ambient temperature;

&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;