phosphoric acid; acetic acid 0.25 h; Heating;

N-(n-butyl)benzenesulfonamide in methanol 3 h;

1: 70 percent / Br2 / CCl4 2: 60 percent / aq. HCl / ethanol / 1 h / Heating 3: 1) aq. KOH / 1) EtOH, 2) pyridine, 6h View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 62 percent / Et₃N / (Ph₃P)2PdCl₂ / dimethylformamide / 24 h / 20 &deg;C<br />2: 73 percent / p-toluenesulfonic acid / benzene / 48 h / 20 &deg;C<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098280', constants.ctx, '0')">tert.-butylhydroperoxide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3599286', constants.ctx, '0')">sodium lauryl sulfate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3602276', constants.ctx, '0')">palladium diacetate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '742035', constants.ctx, '0')">trifluoroacetic acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />T=40&deg;C;&nbsp;24&nbsp;h;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 59 percent / ethanol. NaOH / 8 h / 5 &deg;C<br />2: 72 percent / pyridine<br /> <br /> &nbsp;