sodium ethanolate in ethanol 1.) 10 min, 2.) reflux, 12 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11572037', constants.ctx, '0')">thionyl bromide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '635760', constants.ctx, '0')">toluene</a> <br />6&nbsp;h;&nbsp;<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, '17851176', constants.ctx, '0')">(4,4'-di-tert-butyl-2,2'-dipyridyl)-bis-(2-phenylpyridine(-1H))-iridium(III) hexafluorophosphate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=20&deg;C;&nbsp;&nbsp;Schlenk techniqueInert atmosphereIrradiation;&nbsp;<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: tetrahydrofuran<br />2: 99 percent / SOBr₂ / toluene; various solvent(s) / 6 h<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: butyl magnesium chloride; diethyl ether<br />2: hydrogen bromide<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 1.) Mg / 1.) Et₂O, 0 deg C, 2.) Et₂O, 0 deg C, 20 min<br />2: 77 percent / PBr₃, pyridine / diethyl ether / 2.5 h / Ambient temperature<br /> <br /> &nbsp;