nitric acid in acetic acid T=100°C;

<b>Multi-step reaction with 2 steps<br /> </b>1: 30 percent / concd HCl, NaClO₃ / 2 h / 50 - 60 &deg;C<br />2: 82 percent / tetrahydrofuran; methanol; H₂O / 0.03 h / Heating<br /> <br /> &nbsp;