Dimethylformamide → HCID 86605839, compound

HRID 2221903Notes

Reaction equation

HRID 2221903 reaction equation
C(C1CN([O:14][CH2:15][C:16]2[CH:39]=[CH:38][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:37]=[CH:36][C:31]([C:32]([O:34][CH3:35])=[O:33])=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])=[C:18]([O:40][CH3:41])[CH:17]=2)N(C2C=CC=CC=2)C=1)=O.[CH2:42]([P:51](=[O:58])([O:55][CH2:56][CH3:57])[O:52][CH2:53][CH3:54])P(=O)(OCC)OCC.[CH3:59][N:60]([CH3:63])C=O.[H-].[Na+]>O>[CH2:56]([O:55][P:51](/[CH:42]=[CH:27]/[C:26]1[C:22]([O:14][CH2:15][C:16]2[CH:39]=[CH:38][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:29]=[CH:30][C:31]([C:32]([O:34][CH3:35])=[O:33])=[CH:36][CH:37]=4)[O:25][C:26]=3[CH3:27])=[C:18]([O:40][CH3:41])[CH:17]=2)=[N:23][N:60]([C:63]2[CH:38]=[CH:39][CH:16]=[CH:17][CH:18]=2)[CH:59]=1)([O:52][CH2:53][CH3:54])=[O:58])[CH3:57]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 86605846HCID 86605846, compound

Product 1

HCID 86605839HCID 86605839, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of methyl 4-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-2-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}benzoate (0.57 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. Water was poured into the reaction mixture, 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 methyl 4-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]benzoate as colorless crystals (0.45 g, yield 65%) from a fraction eluted with ethyl acetate-hexane (5:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 129-130° 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-b2cf683b76d146159f2ae73ad88f4815
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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