Water → HCID 86704967, compound

HRID 572156Notes

Reaction equation

HRID 572156 reaction equation
[N:1]1[CH:2]=[CH:3][N:4]2[CH:9]=[CH:8][CH:7]=[C:6]([C:10]3[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=3)[C:5]=12.[H-].[Na+].Cl[C:20]1[N:24]([CH2:25][O:26][CH2:27][CH2:28][Si:29]([CH3:32])([CH3:31])[CH3:30])[C:23]2[CH:33]=[CH:34][CH:35]=[CH:36][C:22]=2[N:21]=1.O>CN(C=O)C>[N:1]1[CH:2]=[CH:3][N:4]2[CH:9]=[CH:8][CH:7]=[C:6]([C:10]3[CH:15]=[CH:14][C:13]([O:16][C:20]4[N:24]([CH2:25][O:26][CH2:27][CH2:28][Si:29]([CH3:31])([CH3:32])[CH3:30])[C:23]5[CH:33]=[CH:34][CH:35]=[CH:36][C:22]=5[N:21]=4)=[CH:12][CH:11]=3)[C:5]=12

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 13764015HCID 13764015, compoundHCID 597528982-Chloro-1-[[2-(trimethylsilanyl)ethoxy]methyl]-benzimidazole

Product 1

HCID 86704967HCID 86704967, compoundYield 61.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 4-(imidazo[1,2-a]pyridin-8-yl)phenol (0.68 g) in DMF (10 ml) was added sodium hydride (60% in oil, 0.13 g), and the mixture was stirred at room temperature for 5 min. To the reaction mixture was added 2-chloro-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-benzimidazole (0.53 g) obtained in Example 1, step A), and the mixture was stirred under microwave irradiation at 150° C. for 1.5 hr. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (0.53 g).

Workup

  1. stirringwas stirred under microwave irradiation at 150° C. for 1.5 hr
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-b1c05cd5017d46bd88e35e2e68d846b1
Source dataset
uspto-grants-2015_05
Patent number
US09029388B2

Reaction notes

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