1: With tert.-butyl lithium in pentane T=-78°C; 0.25 h; 2: With boric acid trimethyl ester in pentane T=-78 - 20°C; 8 h; 3: With ammonium chloride Further stages.;

<b>Multi-step reaction with 2 steps<br /> </b>1: SOCl₂ / Me₃N*HCl / CH₂Cl₂ / 3 h / Heating<br />2: 1.10 g / AIBN; 2-mercaptopyridine-N-oxide sodium salt hydrate; CBrCl₃ / 2 h / Heating<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1708400', constants.ctx, '0')">2,2'-azo-bisisobutyronitrile</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1732543', constants.ctx, '0')">trichloromonobromomethane</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '17957188', constants.ctx, '0')">sodium 2-mercaptopyridine N-oxide hydrate</a> <br />2&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;