tetrabutyl ammonium fluoride in tetrahydrofuran T=20°C; 0.5 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '14202500', constants.ctx, '0')">dilithium tetrachlorocuprate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />T=20&deg;C;&nbsp;3&nbsp;h;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: boron trifluoride diethyl etherate; magnesium sulfate / dichloromethane / 1 h / -40 &deg;C / Inert atmosphere<br />2: 2,6-dimethylpyridine / dichloromethane / 20 &deg;C<br />3: dilithium tetrachlorocuprate / tetrahydrofuran / 3 h / 20 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 2,6-dimethylpyridine / dichloromethane / 20 &deg;C<br />2: dilithium tetrachlorocuprate / tetrahydrofuran / 3 h / 20 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: boron tribromide / dichloromethane; 1,2-dichloro-ethane / 1.5 h / Reflux<br />2: boron trifluoride diethyl etherate; magnesium sulfate / dichloromethane / 1 h / -40 &deg;C / Inert atmosphere<br />3: 2,6-dimethylpyridine / dichloromethane / 20 &deg;C<br />4: dilithium tetrachlorocuprate / tetrahydrofuran / 3 h / 20 &deg;C<br /> <br /> &nbsp;