1-Benzyl-4-nitro-1H-pyrazole → 1-benzyl-1H-pyrazol-4-amine
Reaction equation
[CH2:1]([N:8]1[CH:12]=[C:11]([N+:13]([O-])=O)[CH:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>[Pd]>[CH2:1]([N:8]1[CH:12]=[C:11]([NH2:13])[CH:10]=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 1-benzyl-4-nitro-1H-pyrazole (33 mg, 0.162 mmol) and 10% Pd/C (10 mg) was stirred under an hydrogen atmosphere at rt for 12 h. The catalyst was filtered off, washed with methanol and the solvent was removed under reduced pressure to give the title compound as dark brown oil (27.4 mg, 97%). MS ISP (m/e): 174.2.3 (100) [(M+H)+].
Workup
- filtrationThe catalyst was filtered off
- washwashed with methanol
- customthe solvent was removed under reduced pressure
Sources & evidence
- ORD record
- ord-024c1dacb96f4352a4e4a4e26830e55c
- Source dataset
- uspto-grants-2012_10
- Patent number
- US08288403B2
Reaction notes
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