反应详情

To a solution of methyl 3-methoxy-4-methyl-2-nitrobenzoate (395 g, 1.75 mol) in ethanol (6700 mL) was added Pd/C (39.5 g) in one portion. The reaction mixture was stirred at room temperature under 50 psi of hydrogen overnight. TLC (petroleum ether/ethyl acetate=3:1) indicated the reaction was complete. The mixture was filtered and the filtrate was evaporated in vacuo to give the crude product, which was re-crystallized from ethanol (1.6 L) to give the title compound (321 g, 93.8%) as a white solid.

1. filtrationThe mixture was filtered
2. customthe filtrate was evaporated in vacuo
3. customto give the crude product, which
4. customwas re-crystallized from ethanol (1.6 L)