Dimethylformamide → ethyl (2E)-3-{3-({3-methoxy-4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1-[4-(trifluoromethyl)phenyl]-1H-pyrazol-4-yl}-2-propenoate

HRID 2221971Notes

Reaction equation

HRID 2221971 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:25]=[CH:26][C:27]=1[O:28][CH2:29][C:30]1[N:31]=[C:32]([C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)[O:33][C:34]=1[CH3:35])[CH2:6][O:7][C:8]1[C:12]([CH:13]=O)=[CH:11][N:10]([C:15]2[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=2)[N:9]=1.C(OP([CH2:50][C:51]([O:53][CH2:54][CH3:55])=[O:52])(OCC)=O)C.CN(C)C=O.[H-].[Na+]>O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:25]=[CH:26][C:27]=1[O:28][CH2:29][C:30]1[N:31]=[C:32]([C:36]2[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=2)[O:33][C:34]=1[CH3:35])[CH2:6][O:7][C:8]1[C:12](/[CH:13]=[CH:50]/[C:51]([O:53][CH2:54][CH3:55])=[O:52])=[CH:11][N:10]([C:15]2[CH:16]=[CH:17][C:18]([C:21]([F:23])([F:24])[F:22])=[CH:19][CH:20]=2)[N:9]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 13345Triethyl phosphonoacetateHCID 24758Sodium hydrideHCID 86605894HCID 86605894, compound

Product 1

HCID 86605893ethyl (2E)-3-{3-({3-methoxy-4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1-[4-(trifluoromethyl)phenyl]-1H-pyrazol-4-yl}-2-propenoateYield 69.8%

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-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carbaldehyde (3.30 g), ethyl diethylphosphonoacetate (1.32 g) and N,N-dimethylformamide (50 mL) was added sodium hydride (60% in oil, 0.236 g) at room temperature, and the mixture was stirred for 30 min at the same temperature. The reaction mixture was poured into water, and the precipitated crystals were collected by filtration, and recrystallized from tetrahydrofuran to give ethyl (2E)-3-{3-({3-methoxy-4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1-[4-(trifluoromethyl)phenyl]-1H-pyrazol-4-yl}-2-propenoate as a colorless powder (2.59 g, yield 69%). melting point: 205-206° C.

Workup

  1. filtrationthe precipitated crystals were collected by filtration
  2. customrecrystallized from tetrahydrofuran

Sources & evidence

ORD record
ord-38c24628536045fe8ee5c71a6b224abf
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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