[C:1]1([CH2:7][N:8]2[CH2:13][CH2:12][N:11]([CH2:14][C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[CH2:10][CH:9]2[CH:21]=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:23]([NH2:25])[CH3:24]>ClCCl>[CH2:7]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:10][CH:9]1[CH:21]=[N:25][CH2:23][CH3:24])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1To a solution of 0.5 g (1,4-bis(phenylmethyl)-2-piperazin-carboxaldehyd in 5 ml of dichloromethane was added 0.54 ml ethylamine and 0.5 g molecular sieves. The reaction mixture was stirred for 30 min at rt then filtered. The filtrate was evaporated to dryness.
Wird geladen…