1: toluene / 3 h / Heating 2: 89 percent / PCl3 / dimethylformamide / 2 h / Ambient temperature View Scheme

1: toluene / 3 h / Heating 2: 59 percent / PCl3 / dimethylformamide / 2 h / Ambient temperature View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '10774911', constants.ctx, '0')">lead(IV) acetate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8128136', constants.ctx, '0')">potassium bromide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '506007', constants.ctx, '0')">acetic acid</a> <br />T=30&deg;C;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 2.) polyphosphoric acid / 1.) 120 deg C, 2 h, 2.) 160 deg C, 1 h<br />2: 78.7 percent / 15 percent NaOH / 0.75 h / Heating<br />3: 53.8 percent / KBr, Pb(OAc)4 / H₂O; acetic acid / 30 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 1.) bromine, 2.) 50 percent NaOH<br />2: 2.) polyphosphoric acid / 1.) 120 deg C, 2 h, 2.) 160 deg C, 1 h<br />3: 78.7 percent / 15 percent NaOH / 0.75 h / Heating<br />4: 53.8 percent / KBr, Pb(OAc)4 / H₂O; acetic acid / 30 &deg;C<br /> <br /> &nbsp;