Hydrochloric Acid → 4-(2-Methyl-4-nitrophenoxy)piperidine--hydrogen chloride (1/1)
반응식
C([N:4]1[CH2:9][CH2:8][CH:7]([O:10][C:11]2[CH:16]=[CH:15][C:14]([N+:17]([O-:19])=[O:18])=[CH:13][C:12]=2[CH3:20])[CH2:6][CH2:5]1)(=O)C.[ClH:21].C(O)C>O>[ClH:21].[N+:17]([C:14]1[CH:15]=[CH:16][C:11]([O:10][CH:7]2[CH2:8][CH2:9][NH:4][CH2:5][CH2:6]2)=[C:12]([CH3:20])[CH:13]=1)([O-:19])=[O:18]참가 물질
5
실험 절차
To 1-acetyl-4-(4-nitro-2-methylphenyloxy)piperidine (11.8 g) were added conc. hydrochloric acid (15 ml), ethanol (15 ml) and water (15 ml) and the mixture was heated under reflux overnight. The reaction mixture was concentrated under reduced pressure, the residue thus obtained was washed with ethyl ether and crystals were filtered off to obtain 4-(4-nitro-2-methylphenyloxy)piperidine hydrochloride (8.3 g) as white crystals, m.p. 204°-226° C.
후처리
- temperaturethe mixture was heated
- temperatureunder reflux overnight
- concentrationThe reaction mixture was concentrated under reduced pressure
- customthe residue thus obtained
- washwas washed with ethyl ether and crystals
- filtrationwere filtered off
출처 및 근거
- ORD 기록
- ord-0749b75cb7a3407a8d78e2f757b2fc54
- 출처 데이터셋
- uspto-grants-1996_12
- 특허 번호
- US05580883
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