triethylamine; pyridinium chlorochromate in dichloromethane T=20°C;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />T=-78&deg;C;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> &nbsp;