[C:1]1([CH:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[NH2:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:15][O:16][C:17]1[CH:24]=[CH:23][C:20]([CH:21]=O)=[CH:19][CH:18]=1.C(=O)([O-])[O-].[Na+].[Na+]>CO>[CH3:15][O:16][C:17]1[CH:24]=[CH:23][C:20](/[CH:21]=[N:8]/[CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=2)=[CH:19][CH:18]=1To a solution of diphenylmethanamine (3.00 g, 16.4 mmol) in methanol (80 mL) was added 4-methoxybenzaldehyde (2.45 g, 18.0 mmol) and sodium carbonate (2.60 g, 24.6 mmol). The reaction mixture was stirred at room temperature for 16 h prior to removal of all solvents under vacuum. The residue was then diluted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated to afford compound 39 as a white solid (3.62 g, 73%). LRMS (ESI): (calc.) 301.4 (found) 302.4 (MH)+.
Wird geladen…