Dimethylformamide → HCID 86605807, compound

HRID 2221847Notes

Reaction equation

HRID 2221847 reaction equation
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:34])=[C:9]([CH2:11][O:12][C:13]2[CH:33]=[CH:32][C:16]([CH2:17][O:18][C:19]3[C:23]([CH:24]=O)=[CH:22][N:21]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[N:20]=3)=[CH:15][CH:14]=2)[N:10]=1.[CH2:35](P(=O)(OCC)OCC)[P:36](=[O:43])([O:40][CH2:41][CH3:42])[O:37][CH2:38][CH3:39].CN(C)C=O.[H-].[Na+]>O>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:34])=[C:9]([CH2:11][O:12][C:13]2[CH:14]=[CH:15][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:35]/[P:36](=[O:43])([O:40][CH2:41][CH3:42])[O:37][CH2:38][CH3:39])=[CH:22][N:21]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[N:20]=3)=[CH:32][CH:33]=2)[N:10]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 866057793-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazole-4-carbaldehyde

Product 1

HCID 86605807HCID 86605807, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of 3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazole-4-carbaldehyde (0.37 g), tetraethyl methylenediphosphonate (0.26 g) and N,N-dimethylformamide (20 mL) was added sodium hydride (60% in oil, 0.04 g) at room temperature, and the mixture was stirred at the same temperature for 15 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give diethyl (E)-2-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}ethenylphosphonate as colorless crystals (0.31 g, yield 65%) from a fraction eluted with ethyl acetate-hexane (3:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 131-132° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-d7391ebdb51b43bda6276d71ec55b6c4
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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