反应详情

2-Methyl-4-nitroanisole (4.0 g)in 50 ml 1:1 hydrobromic acid:acetic acid is heated 12 hours at 120°. Solvent is stripped, the residue taken up in water and ethyl acetate, the mixture is filtered to remove insolubles, and the layers are separated. The organic phase is dried, filtered, and stripped to afford 2-methyl-4-nitrophenol. NMR (CDCl3): δ2.3 (3H,s), 6.8 (1H,d), 7.9 (1H,d of d), 8.0 (1H,d).

1. filtrationethyl acetate, the mixture is filtered
2. customto remove insolubles
3. customthe layers are separated
4. customThe organic phase is dried
5. filtrationfiltered