1: 48 percent / Ac2O / 12 h / Heating 2: 32 percent / POCl3 / dimethylformamide / 18 h / Heating 3: 1.) Pd(PPh3)4, 2.) K2CO3 / 1.) THF, room temp., 5 min, 2.) THF, water, reflux, 24 h View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '608317', constants.ctx, '0')">3-chloro-benzenecarboperoxoic acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1731042', constants.ctx, '0')">chloroform</a> <br />24&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;