Sodium periodate → 4-chloro-N-({4-chloro-3-[(3-chloro-5-formylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide

HRID 1875155Notes

Reaction equation

HRID 1875155 reaction equation
[Cl:1][C:2]1[N:3]=[CH:4][N:5]([CH2:29][O:30][CH2:31][CH2:32][Si:33]([CH3:36])([CH3:35])[CH3:34])[C:6]=1[C:7]([NH:9][CH2:10][C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([O:18][C:19]2[CH:24]=[C:23]([CH:25]=C)[CH:22]=[C:21]([Cl:27])[CH:20]=2)[C:12]=1[F:28])=[O:8].I([O-])(=O)(=O)=[O:38].[Na+]>O1CCOCC1.O.CCOC(C)=O.[Os](=O)(=O)(=O)=O>[Cl:1][C:2]1[N:3]=[CH:4][N:5]([CH2:29][O:30][CH2:31][CH2:32][Si:33]([CH3:36])([CH3:35])[CH3:34])[C:6]=1[C:7]([NH:9][CH2:10][C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([O:18][C:19]2[CH:24]=[C:23]([CH:25]=[O:38])[CH:22]=[C:21]([Cl:27])[CH:20]=2)[C:12]=1[F:28])=[O:8]

Participants

7

Reactant 2

HCID 23667635Sodium periodateHCID 684897804-chloro-N-({4-chloro-3-[(3-chloro-5-ethenylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide

Product 1

HCID 866449404-chloro-N-({4-chloro-3-[(3-chloro-5-formylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamideYield 78.6%

Reagents, catalysts & solvents 4

HCID 30318Osmium TetroxideCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

To a solution of 4-chloro-N-({4-chloro-3-[(3-chloro-5-ethenylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide (240 mg, 0.420 mmol) and sodium periodate (270 mg, 1.261 mmol) in dioxane (5 mL) and water (3 ml) was added osmium tetroxide (2.5% solution in t-butanol) (0.106 ml, 8.44 μmol) and the mixture was stirred at room temperature for 5 hours. The mixture was diluted with EtOAc, washed with water and the solvent was removed. The crude material was purified via silica gel chromatography to give 4-chloro-N-({4-chloro-3-[(3-chloro-5-formylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide (189 mg, 0.330 mmol, 78% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.92 (s, 1H), 8.79 (t, 1H), 8.00 (s, 1H), 7.65-7.82 (m, 1H), 7.48-7.57 (m, 1H), 7.37-7.49 (m, 2H), 7.28 (d, 1H), 5.51 (s, 2H), 4.51 (d, 2H), 3.21-3.60 (m, 2H), 0.77 (t, 2H), −0.07 (s, 9H)

Workup

  1. washwashed with water
  2. customthe solvent was removed
  3. customThe crude material was purified via silica gel chromatography

Sources & evidence

ORD record
ord-5fd9abfd6b9b4f53acf83196f6c54220
Source dataset
uspto-grants-2012_11
Patent number
US08304419B2

Reaction notes

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