Piperidine → Benzyl 4-(piperidin-1-ylmethylene)piperidine-1-carboxylate
Reaktionsgleichung
[CH:1]([CH:3]1[CH2:8][CH2:7][N:6]([C:9]([O:11][CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[O:10])[CH2:5][CH2:4]1)=O.[NH:19]1[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1>C1(C)C=CC=CC=1>[N:19]1([CH:1]=[C:3]2[CH2:8][CH2:7][N:6]([C:9]([O:11][CH2:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)=[O:10])[CH2:5][CH2:4]2)[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of benzyl 4-formylpiperidine-1-carboxylate (12.5 g) in toluene (120 mL) was added piperidine (6.46 g). The mixture was stirred at reflux under a Dean-Stark trap overnight. The mixture was then concentrated under vacuum and the residue was used directly in the next step.