manganese(IV) oxide in ethyl acetate T=25°C; 5 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1696894', constants.ctx, '0')">diethyl ether</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587214', constants.ctx, '0')">isopropylmagnesium chloride</a> <br />&nbsp;Erwaermen der Reaktionsloesung mit <i>trans</i>-Crotonaldehyd;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587194', constants.ctx, '0')">iodine</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8973685', constants.ctx, '0')">zinc</a> <br />&nbsp;1) THF, reflux, 1 h, 2) Et₂O, 0 deg C, 30 min;&nbsp;&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;

&nbsp;(i) iPrMgCl, (ii) /BRN= 1209254/;&nbsp;&nbsp;Multistep reaction;&nbsp;<br /> &nbsp;