1: platinum(IV) oxide; hydrogen / ethanol / 20 °C 2: ethanol / 5 h / 0 - 20 °C 3: potassium iodide / ethanol; water / 6 h / 20 °C 4: piperidine / 20 - 50 °C View Scheme

Stage #1: &nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '969212', constants.ctx, '0')">benzene</a> <br />5&nbsp;h;&nbsp;&nbsp;RefluxDean Stark apparatus;&nbsp;<br />Stage #2: <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11343078', constants.ctx, '0')">sodium tetrahydroborate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a> <br />T=20&deg;C;&nbsp;<br /> &nbsp;