1: 1,4-dibromo-butane With magnesium 2: 9,10-dihydro-9-oxoanthracene

sodium in ammonia molar ratio (CH3)3SbCl2 : sodium = 1:4, addn. of 1,4-dibromobutane; evapn. of the ammonia, distn.;

potassium carbonate in N,N-dimethyl-formamide T=20 - 70°C;

With  toluene  

Stage #1: <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605327', constants.ctx, '0')">thiourea</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a> <br />&nbsp;RefluxInert atmosphere;&nbsp;<br />Stage #2: <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '8128150', constants.ctx, '0')">sodium hydroxide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br /> <br />Stage #3: <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098214', constants.ctx, '0')">hydrogenchloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br /> <br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1732799', constants.ctx, '0')">carbon tetrabromide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '610776', constants.ctx, '0')">triphenylphosphine</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1731042', constants.ctx, '0')">chloroform</a> <br />T=20&deg;C;&nbsp;240&nbsp;h;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '2037554', constants.ctx, '0')">sulfuric acid</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8127932', constants.ctx, '0')">sodium bromide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />3&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3903332', constants.ctx, '0')">phosphorus pentabromide</a> <br /> <br /> &nbsp;