反应详情

To a stirred suspension of lithium aluminum hydride (121 mg, 3.2 mmol) in 2 mL dioxane at reflux under nitrogen was added 2-amino-N-(3-fluoro-4-methoxyphenyl)benzamide (260 mg, 1 mmol) as a solution in 2 mL dioxane. After refluxing overnight the reaction was cooled to room temperature and quenched by sequential treatment with H2O (150 μL), 15% NaOH (150 μL) and H2O (450 μL). After stirring for several minutes, the heterogeneous mixture was filtered through GF/F filter paper with dioxane and concentrated to a brown residue (246 mg, 100%). 1H NMR (400 MHz, CDCl3) δ 7.14 (m, 2H), 6.86 (m, 1H), 6.74 (m, 2H), 6.60 (dd, 1H), 6.42 (dd, 1H), 4.15 (d, 2H), 4.12 (br s, 2H), 3.83 (s, 3H), 3.54 (br s, 1H).

1. temperatureat reflux under nitrogen
2. temperatureAfter refluxing overnight the reaction
3. customquenched by sequential treatment with H2O (150 μL), 15% NaOH (150 μL) and H2O (450 μL)
4. filtrationthe heterogeneous mixture was filtered through GF/F
5. filtrationfilter paper with dioxane
6. concentrationconcentrated to a brown residue (246 mg, 100%)