1: 100 percent / BnEt3NCl, 50percent aq. NaOH / toluene / 0.5 h / 80 °C 2: 6N HCl / CH2Cl2 / 0.75 h / 20 °C View Scheme

1: 96 percent / KOH / tetrahydrofuran; H2O / Ambient temperature 2: 93 percent / 4 N H2SO4 / tetrahydrofuran / 40 h / Ambient temperature View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11343078', constants.ctx, '0')">sodium tetrahydroborate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a> <br />T=20&deg;C;&nbsp;1.5&nbsp;h;&nbsp;<br /> &nbsp;