potassium hydroxide; 18-crown-6 ether; oxygen in benzene

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11342937', constants.ctx, '0')">potassium hydroxide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />5&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1.1: Mg / diethyl ether / 20 &deg;C<br />1.2: diethyl ether / -78 - 0 &deg;C<br />2.1: acetic acid; concentrated sulfuric acid / 5 h / 20 &deg;C<br />3.1: 0.295 g / KOH / H₂O / 5 h / Heating<br /> <br /> &nbsp;