1.1: aq. NaOH / 8 h / 20 °C 2.1: aq. H2SO4 / H2O / 3 h / 20 °C 2.2: 28.5 g / 3 h / Heating View Scheme

1.1: sodium hydroxide; water / 5 h / 20 °C 1.2: 3 h / Reflux 2.1: zinc oxide / toluene; decalin / 320 - 360 °C / Inert atmosphere 3.1: hydrogen / Ru2Cl4[(R)Tol-BINAP]2(NEt3) / methanol / 24 h / 25 °C / 36778.6 Torr / Inert atmosphere View Scheme

1.1: sodium hydroxide; water / 5 h / 20 °C 1.2: 3 h / Reflux 2.1: zinc oxide / toluene; decalin / 315 - 360 °C / Inert atmosphere View Scheme

1: water; sodium hydroxide / ethanol / 1.5 h / Reflux 2: n-PrZnI / tetrahydrofuran; ethyl acetate; toluene / 7 h / 80 °C View Scheme

1: water; sodium hydroxide / ethanol / 1.5 h / Reflux 2: n-PrZnI / tetrahydrofuran; ethyl acetate; toluene / 7 h / 80 °C View Scheme

1.1: water; sodium hydroxide / ethanol / 1.5 h / Reflux 2.1: n-PrZnI / tetrahydrofuran; ethyl acetate; toluene / 7 h / 80 °C 2.2: 60 h / 20 °C / 2250.23 Torr View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4122952', constants.ctx, '0')">sodium hydride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />14&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;