1: LiAlH4; diethyl ether 2: palladium/charcoal; ethanol / Hydrogenation View Scheme

tetrahydrofuran; diethyl ether; 2-methyl-1-propenylmagnesium bromide anschl. mit wss. H2SO4;

lithium aluminium tetrahydride; diethyl ether

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '472690', constants.ctx, '0')">toluene-4-sulfonic acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '969212', constants.ctx, '0')">benzene</a> <br />21&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;