Hydrochloric Acid → HCID 14257839, compound
Reaction equation
[C:1]1([C:7]([CH:9]2[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]2)=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([O-])([O-])=O.[K+].[K+].[I-].[K+].Br[CH2:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.[ClH:32]>C1(C)C=CC=CC=1.CCOC(C)=O>[ClH:32].[C:1]1([C:7]([CH:9]2[CH2:14][CH2:13][N:12]([CH2:24][CH2:25][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[CH2:11][CH2:10]2)=[O:8])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1Participants
8
Procedure
A reaction mixture containing phenyl(4-piperidinyl)methanone (20.5 g, 0.108 mol), K2CO3 (33.17 g, 0.18 mol), potassium iodide (0.2 g) and 2-bromoethyl benzene (22.2 g, 0.12 mol, 16.4 ml) in toluene (250 ml) was stirred at reflux temperature for 66 h. The reaction mixture was filtered and the filtrate concentrated to a residue which was dissolved in dry Et2O (500 ml) and treated dropwise with a solution of HCl (0.11 mol) in EtOAc. The resultant precipitate was recrystallized from EtOH:CH3OH, 4:1 (500 ml) to give phenyl[1-(2-phenylethyl)-4-piperidinyl]-methanone hydrochloride, mp 258°-260° C.
Workup
- temperatureat reflux temperature for 66 h
- filtrationThe reaction mixture was filtered
- concentrationthe filtrate concentrated to a residue which
- dissolutionwas dissolved in dry Et2O (500 ml)
- customThe resultant precipitate was recrystallized from EtOH
Sources & evidence
- ORD record
- ord-1cf373d5dd53452883802b32aff1098e
- Source dataset
- uspto-grants-1990_03
- Patent number
- US04912117
Reaction notes
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