Dimethylformamide → ethyl [1-benzyl-3-[3-methoxy-4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1H-pyrazol-4-yl]acetate

HRID 1295319

Reaction equation

HRID 1295319 reaction equation
[CH2:1]([N:8]1[CH:12]=[C:11]([CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:10]([OH:19])=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[CH2:21][C:22]1[CH:41]=[CH:40][C:25]([O:26][CH2:27][C:28]2[N:29]=[C:30]([C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)[O:31][C:32]=2[CH3:33])=[C:24]([O:42][CH3:43])[CH:23]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:1]([N:8]1[CH:12]=[C:11]([CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:10]([O:19][CH2:21][C:22]2[CH:41]=[CH:40][C:25]([O:26][CH2:27][C:28]3[N:29]=[C:30]([C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)[O:31][C:32]=3[CH3:33])=[C:24]([O:42][CH3:43])[CH:23]=2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 223446094-(4-Chloromethyl-2-methoxyphenoxymethyl)-5-methyl-2-phenyloxazoleHCID 178470731HCID 178470731, compound

Product 1

HCID 86591684ethyl [1-benzyl-3-[3-methoxy-4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1H-pyrazol-4-yl]acetateYield 56%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of ethyl (1-benzyl-3-hydroxy-1H-pyrazol-4-yl)acetate (521 mg), 4-(4-chloromethyl-2-methoxyphenoxymethyl)-5-methyl-2-phenyloxazole (687 mg), potassium carbonate (553 mg) and N,N-dimethylformamide (10 ml) was stirred at 60° C. for 5 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and ethyl [1-benzyl-3-[3-methoxy-4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1H-pyrazol-4-yl]acetate (632 mg, yield 56%) was obtained as colorless crystals from a fraction eluted with ethyl acetate-hexane (1:2, volume ratio). The crystals were recrystallized from ethyl acetate-hexane. melting point: 86–87° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-ef007574d6f1451bbcb6dda7f0e2fbec
Source dataset
uspto-grants-2007_07
Patent number
US07241785B2

Linked notes

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