Dimethylformamide → ethyl {4-[4-({4-[({4-[(Z)-2-(2-ethyl-1,3-thiazol-4-yl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]phenyl}acetate

HRID 2222004Notes

Reaction equation

HRID 2222004 reaction equation
[CH:1]([C:3]1[C:4]([O:14][CH2:15][C:16]2[CH:41]=[CH:40][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:33]=[CH:32][C:31]([CH2:34][C:35]([O:37][CH2:38][CH3:39])=[O:36])=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])=[C:18]([O:42][CH3:43])[CH:17]=2)=[N:5][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:7]=1)=O.[Cl-].[CH2:45]([C:47]1[S:48][CH:49]=[C:50]([CH2:52][P+](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[N:51]=1)[CH3:46].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:45]([C:47]1[S:48][CH:49]=[C:50](/[CH:52]=[CH:1]\[C:3]2[C:4]([O:14][CH2:15][C:16]3[CH:41]=[CH:40][C:19]([O:20][CH2:21][C:22]4[N:23]=[C:24]([C:28]5[CH:29]=[CH:30][C:31]([CH2:34][C:35]([O:37][CH2:38][CH3:39])=[O:36])=[CH:32][CH:33]=5)[O:25][C:26]=4[CH3:27])=[C:18]([O:42][CH3:43])[CH:17]=3)=[N:5][N:6]([C:8]3[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=3)[CH:7]=2)[N:51]=1)[CH3:46]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 23076588[(2-Ethyl-1,3-thiazol-4-yl)methyl]triphenylphosphonium chlorideHCID 86605875ethyl (4-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}phenyl)acetate

Product 1

HCID 86605918ethyl {4-[4-({4-[({4-[(Z)-2-(2-ethyl-1,3-thiazol-4-yl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]phenyl}acetateYield 31%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of ethyl (4-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}phenyl)acetate (2.00 g), [(2-ethyl-1,3-thiazol-4-yl)methyl]triphenylphosphonium chloride (2.19 g), anhydrous potassium carbonate (713 mg) and N,N-dimethylformamide (30 mL) was stirred at room temperature for 16 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 and eluted with ethyl acetate-hexane (1:4 to 1:1, v/v) to give ethyl {4-[4-({4-[({4-[(Z)-2-(2-ethyl-1,3-thiazol-4-yl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]phenyl}acetate as colorless crystals (0.71 g, yield 31%). The crystals were recrystallized from tetrahydrofuran-hexane. melting point: 136-137° 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
  5. washeluted with ethyl acetate-hexane (1:4 to 1:1

Sources & evidence

ORD record
ord-5fe18dd2d06a4490a07409f02767a8c5
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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