1-(4-(3-Methoxy-4-nitrophenyl)piperazin-1-yl)ethanone → 1-(4-(4-aMino-3-Methoxyphenyl)piperazin-1-yl)ethanone
Reaction equation
[C:1]([N:4]1[CH2:9][CH2:8][N:7]([C:10]2[CH:15]=[CH:14][C:13]([N+:16]([O-])=O)=[C:12]([O:19][CH3:20])[CH:11]=2)[CH2:6][CH2:5]1)(=[O:3])[CH3:2]>C(O)C.C(OCC)(=O)C.[Pd].[C]>[C:1]([N:4]1[CH2:5][CH2:6][N:7]([C:10]2[CH:15]=[CH:14][C:13]([NH2:16])=[C:12]([O:19][CH3:20])[CH:11]=2)[CH2:8][CH2:9]1)(=[O:3])[CH3:2]Participants
4
Procedure
To a solution of 1-acetyl-4-[3-(methyloxy)-4-nitrophenyl]piperazine (0.4 g, 1.43 mmol) in ethanol: ethyl acetate (5:1) was added 10% Pd/carbon (˜0.100 g, Lancaster) and the mixture was rapidly stirred under 50 psi H2 overnight. The catalyst was removed by vacuum filtration through a celite pad, rinsed with methanol, and concentrated by rotary evaporation to give 4-(4-acetyl-1-piperazinyl)-2-(methyloxy)aniline (0.3 g, 84%). ESIMS (M+H)+=250.
Workup
- customThe catalyst was removed by vacuum filtration through a celite pad
- washrinsed with methanol
- concentrationconcentrated by rotary evaporation
Sources & evidence
- ORD record
- ord-6705cb491a0c489f915ce0c7ae3e1127
- Source dataset
- uspto-grants-2011_07
- Patent number
- US07981903B2
Reaction notes
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