boron tribromide in dichloromethane T=-10 - 20°C; 3 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '110354', constants.ctx, '0')">4-(N,N-dimethlyamino)pyridine</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '5764110', constants.ctx, '0')">1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=0 - 20&deg;C;&nbsp;8&nbsp;h;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: sodium hydrogencarbonate / tetrahydrofuran; water / 0 - 20 &deg;C<br />2: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; 4-(N,N-dimethlyamino)pyridine / dichloromethane / 8 h / 0 - 20 &deg;C / |Inert atmosphere<br /> <br /> &nbsp;