Dimethylformamide → methyl 3-[3-phenyl-1-[4-(5-phenyl-1,2,4-oxadiazole-3-ylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate

HRID 350105Notes

Reaction equation

HRID 350105 reaction equation
Cl[CH2:2][C:3]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[O:5][N:4]=1.[OH:14][C:15]1[CH:38]=[CH:37][C:18]([CH2:19][N:20]2[CH:24]=[C:23]([CH2:25][CH2:26][C:27]([O:29][CH3:30])=[O:28])[C:22]([C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)=[N:21]2)=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[C:31]1([C:22]2[C:23]([CH2:25][CH2:26][C:27]([O:29][CH3:30])=[O:28])=[CH:24][N:20]([CH2:19][C:18]3[CH:17]=[CH:16][C:15]([O:14][CH2:2][C:3]4[N:7]=[C:6]([C:8]5[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=5)[O:5][N:4]=4)=[CH:38][CH:37]=3)[N:21]=2)[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 3021543-(Chloromethyl)-5-phenyl-1,2,4-oxadiazoleHCID 23024960methyl 3-[1-(4-hydroxybenzyl)-3-phenyl-1H-pyrazol-4-yl]propionate

Product 1

HCID 23025023methyl 3-[3-phenyl-1-[4-(5-phenyl-1,2,4-oxadiazole-3-ylmethoxy)benzyl]-1H-pyrazol-4-yl]propionateYield 89%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 3-chloromethyl-5-phenyl-1,2,4-oxadiazole (307 mg), methyl 3-[1-(4-hydroxybenzyl)-3-phenyl-1H-pyrazol-4-yl]propionate (500 mg), potassium carbonate (397 mg) and N,N-dimethylformamide (7 ml) was stirred at room temperature for 18 hours. The reaction mixture was poured into water, which was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4), then concentrated. The residue was subjected to silica gel column chromatography, and methyl 3-[3-phenyl-1-[4-(5-phenyl-1,2,4-oxadiazole-3-ylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate (651 mg, yield: 89%) was obtained as a colorless oily substance from the fraction eluted with ethyl acetate-hexane (1:2, volume ratio).

Workup

  1. extractionwas extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated aqueous sodium chloride solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-a403c1ca1f52450fa80102f9df84057d
Source dataset
uspto-grants-2007_02
Patent number
US07179823B1

Reaction notes

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