1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione in dimethyl sulfoxide 6 h; Ambient temperature; Yield given;

<b>Multi-step reaction with 4 steps<br /> </b>1: camphorsulfonic acid / tetrahydrofuran / 1.5 h / Ambient temperature<br />2: DIBAL-H / tetrahydrofuran; hexane / 14 h / Ambient temperature<br />3: Zn, Me₃Al / tetrahydrofuran / 2 h / -20 - 20 &deg;C<br />4: 2N aq. HCl / methanol / 4 h / Ambient temperature<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: AD-mix-β, OsO₄, MeSO₂NH₂ / 2-methyl-propan-2-ol; H₂O / 8 h / 0 &deg;C<br />2: camphorsulfonic acid / tetrahydrofuran / 1.5 h / Ambient temperature<br />3: DIBAL-H / tetrahydrofuran; hexane / 14 h / Ambient temperature<br />4: Zn, Me₃Al / tetrahydrofuran / 2 h / -20 - 20 &deg;C<br />5: 2N aq. HCl / methanol / 4 h / Ambient temperature<br /> <br /> &nbsp;