sodium periodate in tetrahydrofuran; water T=55°C; 18 h; Yield given;

<b>Multi-step reaction with 3 steps<br /> </b>1: 1.) K₂Os(OH)4, (DHQD)2PHAL, K₃Fe(CN)6, K₂CO₃, CH₃SO₂NH₂, 2.) Na₂SO₃ / 1.) H₂O, t-BuOH, 22 h, 2.) H₂O, t-BuOH, 15 min<br />2: 85 percent / p-TsOH / acetone / 1 h<br />3: 1.) K₂Os(OH)4, quinuclidine, K₃Fe(CN)6, K₂CO₃, CH₃SO₂NH₂, 2.) Na₂SO₃ / 1.) H₂O, t-BuOH, 46 h, 2.) H₂O, t-BuOH, 60 min<br /> <br /> &nbsp;