Hydrogen Bromide → 4-Chloro-5-formyl-2,3,6,7-tetrahydro-1H-azepine hydrobromide
Reaktionsgleichung
[Cl:1][C:2]1[CH2:3][CH2:4][N:5](C(OCC2C=CC=CC=2)=O)[CH2:6][CH2:7][C:8]=1[CH:9]=[O:10].[BrH:21]>C(O)(=O)C>[BrH:21].[Cl:1][C:2]1[CH2:3][CH2:4][NH:5][CH2:6][CH2:7][C:8]=1[CH:9]=[O:10]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
10.5 gm (0.036 mol) of benzyl 4-chloro-5-formyl-2,3,6,7-tetrahydro-1H-1-azepine-carboxylate were mixed with 100 ml of a 40% solution of hydrogen bromide in glacial acetic acid, while stirring and cooling with ice. The mixture was then stirred for 3 hours at room temperature. It was then concentrated by evaporation in a rotary evaporator, and the residue was triturated with ether. After the ether had been decanted several times, the product was suction-filtered and washed twice with absolute ether.