Hydrogen Bromide → 79412-27-4
Reaction equation
Cl.[CH2:2]([N:5]1[CH2:10][CH2:9][CH2:8][CH:7]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([O:17]C)[CH:12]=2)[CH2:6]1)[CH2:3][CH3:4].[BrH:19]>>[BrH:19].[CH2:2]([N:5]1[CH2:10][CH2:9][CH2:8][CH:7]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([OH:17])[CH:12]=2)[CH2:6]1)[CH2:3][CH3:4]Participants
3
Procedure
N-Propyl-3-(3-methoxyphenyl)piperidine hydrochloride (7.0 g, 0.026 mol) was suspended in 48% HBr (200 ml). The mixture was refluxed under nitrogen for 3 h. The hydrobromic acid was evaporated and the residue was recrystallized from ethanol/ether, yielding the pure product (6.7 g, 86%) mp. 146°-7.5° C.
Workup
- temperatureThe mixture was refluxed under nitrogen for 3 h
- customThe hydrobromic acid was evaporated
- customthe residue was recrystallized from ethanol/ether
Sources & evidence
- ORD record
- ord-a61722a984f84d668cce3f41961b2b08
- Source dataset
- uspto-grants-1984_01
- Patent number
- US04426386
Reaction notes
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