1: p-toluenesulfonic acid hydrate / acetone / 1 h 2: 36.93 g / piperidine, acetic acid / benzene / 5 h / Heating View Scheme

1: p-toluenesulfonic acid hydrate / acetone / 1 h 2: 36.93 g / piperidine, acetic acid / benzene / 5 h / Heating 3: LiAlH4 / diethyl ether / 3 h / Ambient temperature 4: 23.30 g / pyridinium chlorochromate / CH2Cl2 / 2.5 h View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3535004', constants.ctx, '0')">hydrogen sulfide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br /> <br /> <br /> &nbsp;

&nbsp;Multistep reaction;&nbsp;<br /> &nbsp;