hydrogen fluoride in acetonitrile 2 h; Ambient temperature;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />1.5&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '13161774', constants.ctx, '0')">cerium(III) chloride</a> <br />&nbsp;1.) THF, -78 deg C, 30 min, 2.) THF;&nbsp;&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;