2: NaI / acetone / 4 h / Heating 3: 76 percent / t-BuLi, N,N,N'-N'-tetramethylethylenediamine / pentane; diethyl ether / 1) -78 deg C, 5 min, 2) RT, 2 h View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098214', constants.ctx, '0')">hydrogenchloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a> <br />0.25&nbsp;h;&nbsp;&nbsp;HeatingpH ca. 3;&nbsp;<br /> &nbsp;