反应详情

A solution of 2-hydroxy-3-methyl-benzaldehyde (1.13 g, 8.29 mmol), hydroxylamine hydrochloride (0.69 g, 9.9 mmol) and sodium acetate (0.8 g, 9.9 mmol) in formic acid (20 ml) is heated at reflux over night. The solvent is evaporated under reduced pressure and the residue is partitioned between water and ethyl acetate. The organic phase is dried and evaporated to dryness. Chromatography yields the title compound. (CDCl3, 400 MHz): 7.32 (m, 2H); 6.89 (t, 1H); 5.65 (s, 1H); 2.23 (s, 3H).

1. temperatureat reflux over night
2. customThe solvent is evaporated under reduced pressure
3. customthe residue is partitioned between water and ethyl acetate
4. customThe organic phase is dried
5. customevaporated to dryness