1: 67 percent / ethanol / 48 h / Heating 2: 48 percent / 0.5 h / 650 °C / 0.01 Torr View Scheme

<b>Multi-step reaction with 3 steps<br /> </b>1: tetrahydrofuran / 1 h / 20 &deg;C<br />2: tetrahydrofuran; light petroleum / 4 h / 0 - 5 &deg;C<br />3: 11 percent / various solvent(s) / 1 h / Heating<br /> <br /> &nbsp;

Stage #1: <a href="#" onclick="return RXDsubstances(event, this, '506523', constants.ctx, '0')">thiophenol</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4122952', constants.ctx, '0')">sodium hydride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8190416', constants.ctx, '0')">mineral oil</a> <br />T=0 - 20&deg;C;&nbsp;0.25&nbsp;h;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br />Stage #2: <a href="#" onclick="return RXDsubstances(event, this, '1869594', constants.ctx, '0')">2-chlorobenzophenone</a> &nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8190416', constants.ctx, '0')">mineral oil</a> <br />T=140&deg;C;&nbsp;3&nbsp;h;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> &nbsp;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />3&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '103233', constants.ctx, '0')">pyridine</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '107477', constants.ctx, '0')">quinoline</a> <br />T=200 - 210&deg;C;&nbsp;<br /> &nbsp;