1: 80 percent / pyridinium chlorochromate (PCC) / CH2Cl2 / 12 h / Ambient temperature 2: DDQ / dioxane / Heating View Scheme

pyridinium chlorochromate in dichloromethane 12 h; Ambient temperature;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209257', constants.ctx, '0')">selenium(IV) oxide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '2216194', constants.ctx, '0')">camphor-10-sulfonic acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102551', constants.ctx, '0')">1,4-dioxane</a> <br />T=55&deg;C;&nbsp;1.5&nbsp;h;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: NaH / dimethylformamide<br />2: 71 percent / Na₂CO₃, m-chloroperbenzoic acid / CH₂Cl₂; H₂O / 3 h / 0 &deg;C<br />3: 20 percent / selenium dioxide, camphorsulfonic acid / dioxane / 1.5 h / 55 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: NaH / dimethylformamide<br />2: 71 percent / Na₂CO₃, m-chloroperbenzoic acid / CH₂Cl₂; H₂O / 3 h / 0 &deg;C<br />3: 20 percent / selenium dioxide, camphorsulfonic acid / dioxane / 1.5 h / 55 &deg;C<br /> <br /> &nbsp;