Dimethylformamide → HCID 86605804, compound

HRID 2221845Notes

Reaction equation

HRID 2221845 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][C:23]=1[O:24][CH2:25][C:26]1[N:27]=[C:28]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[O:29][C:30]=1[CH3:31])[CH2:6][O:7][C:8]1[C:12]([CH:13]=O)=[CH:11][N:10]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:9]=1.[CH2:38]([P:47](=[O:54])([O:51][CH2:52][CH3:53])[O:48][CH2:49][CH3:50])P(=O)(OCC)OCC.CN(C)C=O.[H-].[Na+]>O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][C:23]=1[O:24][CH2:25][C:26]1[N:27]=[C:28]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[O:29][C:30]=1[CH3:31])[CH2:6][O:7][C:8]1[C:12](/[CH:13]=[CH:38]/[P:47](=[O:54])([O:48][CH2:49][CH3:50])[O:51][CH2:52][CH3:53])=[CH:11][N:10]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[N:9]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 86605805HCID 86605805, compound

Product 1

HCID 86605804HCID 86605804, compoundYield 68%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of 3-({3-methoxy-4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1-phenyl-1H-pyrazole-4-carbaldehyde (0.50 g), tetraethyl methylenediphosphonate (0.32 g) and N,N-dimethylformamide (20 mL) was added sodium hydride (60% in oil, 0.05 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-({3-methoxy-4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1-phenyl-1H-pyrazol-4-yl]ethenylphosphonate as colorless crystals (0.43 g, yield 68%) from a fraction eluted with ethyl acetate-hexane (3:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 92-93° 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-85b0376f1a09444e9859e09642441245
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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