Stage #1: <a href="#" onclick="return RXDsubstances(event, this, '105338', constants.ctx, '0')">thien-3-yl bromide</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209227', constants.ctx, '0')">n-butyllithium</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>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '741857', constants.ctx, '0')">acetonitrile</a> <br />T=-40&deg;C;&nbsp;0.25&nbsp;h;&nbsp;&nbsp;Inert atmosphereSealed tube;&nbsp;<br />Stage #2: <a href="#" onclick="return RXDsubstances(event, this, '1071199', constants.ctx, '0')">1,4-dibromo-butane</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>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '741857', constants.ctx, '0')">acetonitrile</a> <br />T=20&deg;C;&nbsp;5&nbsp;h;&nbsp;<br /> &nbsp;