Hydrochloric Acid → HCID 9892443, compound
Reaction equation
[CH2:1]([N:5]1[CH2:10][CH2:9][C@@H:8]([C:11]2[CH:16]=[CH:15][C:14]([N:17]([CH3:19])[CH3:18])=[CH:13][CH:12]=2)[C@H:7]([CH2:20][OH:21])[CH2:6]1)[CH2:2][CH2:3][CH3:4].F[C:23]1[CH:28]=[CH:27][C:26]([C:29]([F:32])([F:31])[F:30])=[CH:25][CH:24]=1.CC(C)([O-])C.[K+].C1(N)C(F)=C(F)C(F)=C(N)C=1F.[ClH:51].Cl.Cl>CN(C)C=O.CC(C)=O>[ClH:51].[ClH:51].[CH2:1]([N:5]1[CH2:10][CH2:9][C@@H:8]([C:11]2[CH:12]=[CH:13][C:14]([N:17]([CH3:18])[CH3:19])=[CH:15][CH:16]=2)[C@H:7]([CH2:20][O:21][C:23]2[CH:28]=[CH:27][C:26]([C:29]([F:32])([F:31])[F:30])=[CH:25][CH:24]=2)[CH2:6]1)[CH2:2][CH2:3][CH3:4]Participants
8
Reactant 5
Product 1
Reagents, catalysts & solvents 2
Procedure
The piperidine base was prepared as described above from (±)-trans-1-butyl-3-hydroxymethyl-4-(4-dimethylaminophenyl)piperidine and 4-fluorobenzotrifluoride in dimethyl formamide with potassium tert-butoxide. The dihydrochloride was precipitated from an acetone solution by addition of 2.2 equivalents of conc. hydrochloric acid. The filtrate was evaporated at reduced pressure and the residue redispensed in acetone giving in all about 90% of the dihydrochloride. M.p. 211°-215° C.
Workup
- customThe filtrate was evaporated at reduced pressure
Sources & evidence
- ORD record
- ord-92674c130a0b4e1ca1f5824f492ca230
- Source dataset
- uspto-grants-1994_07
- Patent number
- US05328917
Reaction notes
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