1: With oxalic acid; dimethyl sulfoxide in dichloromethane T=-60°C; 0.25 h; 2: With triethylamine in dichloromethane T=-60°C; Heating;

triethylamine in dichloromethane; ethyl acetate

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4267587', constants.ctx, '0')">potassium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '741857', constants.ctx, '0')">acetonitrile</a> <br />17&nbsp;h;&nbsp;&nbsp;Reflux;&nbsp;<br /> <br /> &nbsp;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br /> <br /> <br /> &nbsp;