C1CCN2C(=NCCC2)CC1.[CH:12](=[O:19])[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[F:20][C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([F:27])[C:22]=1[N:28]=[O:29]>ClCCl>[F:20][C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([F:27])[C:22]=1[N:28]([OH:29])[C:12](=[O:19])[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1DBU (15 mg, 0.1 mmol) was added under argon to a solution of benzaldehyde (106 mg, 1 mmol), 1,3-difluoro-2-nitrosobenzene (143 mg, 1 mmol) and catalyst (36.4 mg, 0.1 mmol) in dichloromethane (5 mL). The reaction mixture was stirred at room temperature for 60 min. The solvent was removed under vacuum, and the residue was purified by flash silica gel column chromatography using hexane and ethyl acetate as the eluents.
Wird geladen…