Dimethylformamide → HCID 69217816, compound

HRID 2221743Notes

Reaction equation

Cl[CH2:2][C:3]1[CH:21]=[CH:20][C:6]([O:7][CH2:8][C:9]2[N:10]=[C:11]([C:15]3[O:16][CH:17]=[CH:18][CH:19]=3)[O:12][C:13]=2[CH3:14])=[C:5]([O:22][CH2:23][CH3:24])[CH:4]=1.[CH2:25]([N:32]1[CH:36]=[C:35]([C:37]([O:39][CH2:40][CH3:41])=[O:38])[C:34]([OH:42])=[N:33]1)[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:25]([N:32]1[CH:36]=[C:35]([C:37]([O:39][CH2:40][CH3:41])=[O:38])[C:34]([O:42][CH2:2][C:3]2[CH:21]=[CH:20][C:6]([O:7][CH2:8][C:9]3[N:10]=[C:11]([C:15]4[O:16][CH:17]=[CH:18][CH:19]=4)[O:12][C:13]=3[CH3:14])=[C:5]([O:22][CH2:23][CH3:24])[CH:4]=2)=[N:33]1)[C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1

Participants

Conditions

Temperature: 90 °C

Procedure

A mixture of 4-(4-chloromethyl-2-ethoxyphenoxy)methyl-5-methyl-2-(2-furyl)-1,3-oxazole (2.33 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 90° C. for 2 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 to give ethyl 1-benzyl-3-[(3-ethoxy-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazole-4-carboxylate as colorless crystals (3.02 g, yield 89%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 121-122° C.

Workup

extractionthe mixture was extracted with ethyl acetate
washThe ethyl acetate layer was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated

Sources & evidence

ORD record: ord-51f09491645b4f2597292fb01e97811c
Source dataset: uspto-grants-2008_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07368578B2

Reaction notes

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