sodium hydroxide; sulfuric acid 1.) ethanol, room temp., 5 h, 2.) reflux, 12 h; Yield given. Multistep reaction;

1: 1.) 10percent aq. NaOH, 2.) 10percent aq. H2SO4 / 1.) ethanol, room temp., 5 h, 2.) reflux, 12 h 2: 74 percent / diisobutylaluminum hydride / tetrahydrofuran; hexane / 1 h / -20 °C 3: 14 percent / p-toluenesulfonic acid / various solvent(s) / 175 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3647881', constants.ctx, '0')">sodium</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '969212', constants.ctx, '0')">benzene</a> <br />&nbsp;Erwaermen des Reaktionsgemisches mit 1,2-Dibrom-aethan;&nbsp;<br /> &nbsp;