6-[4-Isopropyl-2-(2-trifluoromethoxy-phenyl)-2H-pyrazol-3-ylmethoxy]-2-methyl-3-nitro-pyridine → 6-[4-Isopropyl-2-(2-trifluoromethoxy-phenyl)-2H-pyrazol-3-ylmethoxy]-2-methyl-pyridin-3-ylamine
Reaction equation
[CH:1]([C:4]1[CH:8]=[N:7][N:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[O:15][C:16]([F:19])([F:18])[F:17])[C:5]=1[CH2:20][O:21][C:22]1[N:27]=[C:26]([CH3:28])[C:25]([N+:29]([O-])=O)=[CH:24][CH:23]=1)([CH3:3])[CH3:2]>CCO.C1COCC1.[Pt]=O>[CH:1]([C:4]1[CH:8]=[N:7][N:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[O:15][C:16]([F:19])([F:17])[F:18])[C:5]=1[CH2:20][O:21][C:22]1[N:27]=[C:26]([CH3:28])[C:25]([NH2:29])=[CH:24][CH:23]=1)([CH3:3])[CH3:2]Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
To an ambient temperature solution of 6-[4-Isopropyl-2-(2-trifluoromethoxy-phenyl)-2H-pyrazol-3-ylmethoxy]-2-methyl-3-nitro-pyridine (2.73 g, 6.25 mmol) in EtOH/THF (100/100 mL) is added platinum (II) oxide (142 mg, 0.625 mmol, 10 mol %). The reaction is placed under an atmosphere of hydrogen gas. After 3 h, the reaction is filtered through diatomaceous earth, concentrated, and chromatographed (0% to 30% EtOAc/Hex) to yield the title compound (2.15 g, 85%). 1H NMR (400 MHz, CDCl3) δ 7.60 (s, 1H), 7.53 (dd, 1H, J=7.9, 1.8 Hz), 7.46-7.41 (m, 1H), 7.39-7.31 (m, 2H), 7.08 (d, 1H, J=8.8 Hz), 6.33 (d, 1H, J=8.4 Hz), 5.17 (s, 2H), 3.06 (sept, 1H, J=7.0 Hz), 2.32 (s, 3H), 1.27 (d, 6H, J=7.0 Hz).
Workup
- filtrationthe reaction is filtered through diatomaceous earth
- concentrationconcentrated
- customchromatographed (0% to 30% EtOAc/Hex)
Sources & evidence
- ORD record
- ord-9890a646266d41cebe46cffb3f2735e8
- Source dataset
- uspto-grants-2010_12
- Patent number
- US07846960B2
Reaction notes
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