Hydrochloric Acid → 2-[[3-[(5-Methyl-2-phenyl-4-oxazolyl)methoxy]-5-isoxazolyl]methoxy]nicotinonitrile

HRID 1294217Notes

Reaction equation

HRID 1294217 reaction equation
[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:19]=[C:18]([CH2:20][OH:21])[O:17][N:16]=1.Cl[C:23]1[C:28]([C:29]#[N:30])=[CH:27][CH:26]=[CH:25][N:24]=1.[H-].[Na+].Cl>O.CN(C)C=O>[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:19]=[C:18]([CH2:20][O:21][C:23]2[N:24]=[CH:25][CH:26]=[CH:27][C:28]=2[C:29]#[N:30])[O:17][N:16]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 810792-ChloronicotinonitrileHCID 178612053-(5-Methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethanol

Product 1

HCID 688861452-[[3-[(5-Methyl-2-phenyl-4-oxazolyl)methoxy]-5-isoxazolyl]methoxy]nicotinonitrileYield 96.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a mixture of [3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolyl]methanol (2.00 g), 2-chloro-3-cyanopyridine (1.16 g) and N,N-dimethylformamide (60 mL) was gradually added sodium hydride (60%, oil, 335 mg) under ice-cooling. After stirring the reaction mixture at room temperature for 90 min., water was added to the reaction mixture. The mixture was neutralized with 2N hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate and concentrated. The obtained residue was subjected to silica gel column chromatography to give crystals (2.61 g, 96%) of 2-[[3-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]-5-isoxazolyl]methoxy]nicotinonitrile from a fraction eluted with ethyl acetate-hexane (1:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 139-140° C.

Workup

  1. temperaturecooling
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-c35fff6928264139966651b3f5e486f5
Source dataset
uspto-grants-2007_07
Patent number
US07238716B2

Reaction notes

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