Sodium Bicarbonate → 1-Amino-6,11-dihydrodibenz[b,e]oxepin-11-one
Reaction equation
C([NH:4][C:5]1[C:15]2[C:14](=[O:16])[C:13]3[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=3[CH2:11][O:10][C:9]=2[CH:8]=[CH:7][CH:6]=1)(=O)C.C(=O)(O)[O-].[Na+]>Cl>[NH2:4][C:5]1[C:15]2[C:14](=[O:16])[C:13]3[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=3[CH2:11][O:10][C:9]=2[CH:8]=[CH:7][CH:6]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
In concentrated hydrochloric acid (10 ml), 1-acetamido-6,11-dihydrodibenz[b,e]oxepin-11-one obtained in Reference Example 3(0.25 g, 0.94 mmol) was heated under reflux for 2 hours. The reaction mixture was poured into a saturated aqueous solution of sodium bicarbonate, followed by extraction with ethyl acetate (25 ml). The organic layer was washed with a saturated aqueous solution of sodium chloride, and then dried over anhydrous magnesium sulfate. After the drying agent was filtered off, the organic layer was concentrated under reduced pressure to give 1-amino-6,11-dihydrodibenz[b,e]oxepin-11-one as a yellow solid (0.17 g, 81%).