反应详情

under an N2 atmosphere, 4-(2-chlorobenzamido)benzoic acid (0.500 g, 1.81 mmol) was dissolved in N,N-dimethylformamide (10.0 ml) and the solution was treated with N-3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.696 g, 3.62 mmol), 1-hydroxybenzotriazole hydrate (0.491 g, 3.62 mmol), 2-amino-1-phenylethanol (0.498 g, 3.62 mmol), and triethylamine (0.506 ml, 3.62 mmol). The reaction was allowed to stir at room temperature overnight. The reaction was diluted with ethyl acetate and washed with 0.5N HCl followed by 5% NaHCO3. The organic layer was dried (Na2SO4), and concentrated in vacuo. The resulting solid was triturated with a mixture of ethyl acetate and hexanes to afford 2-chloro-N-(4-(((2-hydroxy-2-phenylethyl)amino)carbonyl)phenyl)benzamide (0.578 g, 71.5%) after collecting the solid by filtration. ESI m/z=395.0 (M+H+).

1. washwashed with 0.5N HCl
2. dry with materialThe organic layer was dried (Na2SO4)
3. concentrationconcentrated in vacuo
4. customThe resulting solid was triturated with a mixture of ethyl acetate and hexanes