boron trifluoride diethyl etherate in tetrahydrofuran Ambient temperature; Title compound not separated from byproducts;

<b>Multi-step reaction with 2 steps<br /> </b>1: 1) BuLi / 1) THF, hexane, -78 deg C, 1 h, 2) THF, -78 deg C, 2 h, then rt, 15 h<br />2: 1) BuLi / 1) THF, hexane, -78 deg C, 1 h, 2) THF, -78 deg C, 2 h, then rt, 15 h<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209227', constants.ctx, '0')">n-butyllithium</a> <br />&nbsp;1) THF, hexane, -78 deg C, 1 h, 2) THF, -78 deg C, 2 h, then rt, 15 h;&nbsp;&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;