in trifluoroacetic acid 2 h; Ambient temperature;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '19778174', constants.ctx, '0')">TEA</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '2804567', constants.ctx, '0')">diphenyl-phosphinic acid</a> <br />&nbsp;0 deg C, 4h, room temp. overnight;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: DCC / acetonitrile<br />2: Et₃N / acetonitrile<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b> <br /> &nbsp;