反应详情

2-Cyanobenzoic acid (1.00 g, 6.80 mmol), phenol (576 mg, 6.12 mmol) and PyBOP (3.90 g, 7.48 mmol) were dissolved in DMF (12 mL), and triethylamine (2.10 mL, 15.0 mmol) was added thereto, followed by stirring at room temperature for 4 hours. The reaction mixture was poured into water, followed by extraction with ethyl acetate. The organic layer was washed successively with a saturated aqueous solution of sodium hydrogencarbonate and a saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate, and then the solvent was distilled away under reduced pressure. The resulting residue was purified through silica gel column chromatography (hexane:ethyl acetate=3:2) to afford phenyl 2-cyanobenzoate (1.24 g, 82%).

1. extractionfollowed by extraction with ethyl acetate
2. washThe organic layer was washed successively with a saturated aqueous solution of sodium hydrogencarbonate
3. dry with materiala saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate
4. distillationthe solvent was distilled away under reduced pressure
5. customThe resulting residue was purified through silica gel column chromatography (hexane:ethyl acetate=3:2)