反应详情

温度

95 °C

To a solution of 1-(2-hydroxy-3-methyl-4-nitro-phenyl)-ethanone (720 mg, 3.7 mmol) in EtOH (30 mL) are consecutively added Fe powder (4 g, 74 mmol), water (7.2 mL), and conc. HCl (145 μL). The reaction mixture is heated at 95° C. for 4 h. The iron is filtered through celite and the filtrate poured slowly into saturated aqueous NaHCO3. After the bubbling subsides, the mixture is extracted with EtOAc (3×). The organic layers are combined, washed with brine, dried over Na2SO4, and concentrated. The residue is purified by 25% EtOAc/hexane. Obtained is the title compound as a white solid (455 mg). LC-MS (m/e): 166 (M+1).

1. filtrationThe iron is filtered through celite
2. additionthe filtrate poured slowly into saturated aqueous NaHCO3
3. extractionAfter the bubbling subsides, the mixture is extracted with EtOAc (3×)
4. washwashed with brine
5. dry with materialdried over Na2SO4
6. concentrationconcentrated
7. customThe residue is purified by 25% EtOAc/hexane
8. customObtained