potassium hydroxide T=140°C;

1: 61 percent / Et2O*BF3 / 0.75 h / 5 °C 2: 96 percent / KOH / dimethylformamide / 7 h / 0 °C 3: 67 percent / 4 M aq. NaOH / 5 h / 20 °C View Scheme

1: potassium hydroxide / 140 °C 2: nitrogen; magnesium hydrogenphosphate sodium silicate / 350 °C / 40 Torr View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1731042', constants.ctx, '0')">chloroform</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587193', constants.ctx, '0')">bromine</a> <br />T=-25&deg;C;&nbsp;&nbsp;im UV-Licht und anschliessend mit Methanol;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '19253272', constants.ctx, '0')">3 A molecular sieve</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587193', constants.ctx, '0')">bromine</a> <br />3&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;