1: 1N NaOH / methanol 2: 1.) ClCO2Et / 1.) CH2CL2, 2.) Et2O 3: 1.) rhodium (II) acetate dimer, 2.) W-2 Raney Ni / 1.) benzene, reflux, 2.) acetone View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11342940', constants.ctx, '0')">sodium hydroxide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />2&nbsp;h;&nbsp;<br /> &nbsp;