2-(1-Methyl-1h-imidazol-4-yl)-4-[(6-nitro-3-pyridinyl)oxy]pyridine → 5-((2-(1-methyl-1H-imidazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amine

HRID 1049255Notes

Reaction equation

HRID 1049255 reaction equation
[CH3:1][N:2]1[CH:6]=[C:5]([C:7]2[CH:12]=[C:11]([O:13][C:14]3[CH:15]=[N:16][C:17]([N+:20]([O-])=O)=[CH:18][CH:19]=3)[CH:10]=[CH:9][N:8]=2)[N:4]=[CH:3]1>CO.[Pd]>[CH3:1][N:2]1[CH:6]=[C:5]([C:7]2[CH:12]=[C:11]([O:13][C:14]3[CH:19]=[CH:18][C:17]([NH2:20])=[N:16][CH:15]=3)[CH:10]=[CH:9][N:8]=2)[N:4]=[CH:3]1

Participants

4

Reactant 1

HCID 904032142-(1-Methyl-1h-imidazol-4-yl)-4-[(6-nitro-3-pyridinyl)oxy]pyridine

Product 1

HCID 904032995-((2-(1-methyl-1H-imidazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amineYield 91%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A solution of 2-(1-methyl-1H-imidazol-4-yl)-4-((6-nitropyridin-3-yl)oxy)pyridine (1.61 g, 5.42 mmol) in MeOH (30 mL) was treated with 10% Pd/C (50% w/w water, 0.576 g, 0.542 mmol) and hydrogenated (50 psi) overnight. The solids were removed via filtration through diatomaceous earth, washed with warm MeOH and the filtrate was concentrated to dryness to afford 5-((2-(1-methyl-1H-imidazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amine (1.311 g, 91%). 1H NMR (400 MHz, DMSO-d6): δ 8.31 (d, J=5.7 Hz, 1H), 7.81 (d, J=2.9 Hz, 1H), 7.65 (d, J=1.3 Hz, 1H), 7.58 (s, 1H), 7.29 (dd, J=8.9, 3.0 Hz, 1H), 7.19 (d, J=2.6 Hz, 1H), 6.73 (dd, J=5.7, 2.6 Hz, 1H), 6.52 (d, J=8.9 Hz. 1H), 6.03 (s, 2H), 3.67 (s, 3H); MS (ESI) m/z: 268.1 (M+H+).

Workup

  1. customThe solids were removed via filtration through diatomaceous earth
  2. washwashed with warm MeOH
  3. concentrationthe filtrate was concentrated to dryness

Sources & evidence

ORD record
ord-ff03f591c4584bd09dd8e682b4b6826d
Source dataset
uspto-grants-2016_07
Patent number
US09382228B2

Reaction notes

Loading…