polyphosphoric acid T=80°C; Friedel-Crafts Acylation; 12 h;

<b>Multi-step reaction with 2 steps<br /> </b>1: K₂CO₃ / dimethylformamide / 10 h / 150 &deg;C<br />2: concd. HCl / acetic acid / 24 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: potassium carbonate / 0.08 h / 0 &deg;C<br />1.2: 12 h / 160 - 180 &deg;C<br />2.1: palladium 10 on activated carbon; hydrogen / methanol / 24 h / 7600.51 Torr<br /> <br /> &nbsp;