Dimethylformamide → HCID 69215909, compound

HRID 2221737Notes

Reaction equation

HRID 2221737 reaction equation
Cl[CH2:2][C:3]1[CH:4]=[C:5]([CH:20]=[CH:21][CH:22]=1)[O:6][CH2:7][C:8]1[N:9]=[C:10]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[O:11][C:12]=1[CH3:13].[CH2:23]([N:30]1[CH:34]=[C:33]([C:35]([O:37][CH2:38][CH3:39])=[O:36])[C:32]([OH:40])=[N:31]1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:23]([N:30]1[CH:34]=[C:33]([C:35]([O:37][CH2:38][CH3:39])=[O:36])[C:32]([O:40][CH2:2][C:3]2[CH:22]=[CH:21][CH:20]=[C:5]([O:6][CH2:7][C:8]3[N:9]=[C:10]([C:14]4[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=4)[O:11][C:12]=3[CH3:13])[CH:4]=2)=[N:31]1)[C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 108815514-(3-Chloromethylphenoxymethyl)-5-methyl-2-phenyloxazoleHCID 178469738HCID 178469738, compound

Product 1

HCID 69215909HCID 69215909, compoundYield 87.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 4-(3-chloromethylphenoxy)methyl-5-methyl-2-phenyl-1,3-oxazole (2.10 g), ethyl 1-benzyl-3-hydroxy-1H-pyrazole-4-carboxylate (1.50 g), potassium carbonate (0.84 g) and N,N-dimethylformamide (50 mL) was stirred at 80° C. for 15 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate 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 (1:2, v/v) to give ethyl 1-benzyl-3-({3-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]benzyl}oxy)-1H-pyrazole-4-carboxylate as colorless crystals (2.78 g, yield 87%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 95-96° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. washeluted with ethyl acetate-hexane (1:2

Sources & evidence

ORD record
ord-7d858189dca740ca96958995164ed0ff
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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