1: pyridine; CH2Cl2 / 1.5 h / Ambient temperature 2: 97 percent / BF3*Et2O / CH2Cl2 / 5 h / Heating View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3539763', constants.ctx, '0')">hydroxylamine hydrochloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3595639', constants.ctx, '0')">sodium acetate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1718733', constants.ctx, '0')">ethanol</a> <br />40&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;