Dimethylformamide → methyl (4E)-4-[[4-[[2-(furan-2-yl)-5-methyl-1,3-oxazol-4-yl]methoxy]phenyl]methoxyimino]-4-phenylbutanoate

HRID 584480Notes

Reaction equation

HRID 584480 reaction equation
Cl[CH2:2][C:3]1[N:4]=[C:5]([C:9]2[O:10][CH:11]=[CH:12][CH:13]=2)[O:6][C:7]=1[CH3:8].[OH:14][C:15]1[CH:36]=[CH:35][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)\[CH2:23][CH2:24][C:25]([O:27][CH3:28])=[O:26])=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C.CCCCCC.O>[O:10]1[CH:11]=[CH:12][CH:13]=[C:9]1[C:5]1[O:6][C:7]([CH3:8])=[C:3]([CH2:2][O:14][C:15]2[CH:16]=[CH:17][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:29]3[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=3)\[CH2:23][CH2:24][C:25]([O:27][CH3:28])=[O:26])=[CH:35][CH:36]=2)[N:4]=1

Participants

7

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 10946929methyl (4E)-4-[(4-hydroxyphenyl)methoxyimino]-4-phenylbutanoateHCID 223445824-(Chloromethyl)-2-(furan-2-yl)-5-methyl-1,3-oxazole

Product 1

HCID 11091963methyl (4E)-4-[[4-[[2-(furan-2-yl)-5-methyl-1,3-oxazol-4-yl]methoxy]phenyl]methoxyimino]-4-phenylbutanoateYield 67%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

A mixture of 4-(chloromethyl)-2-(2-furyl)-5-methyloxazole (348 mg), methyl E-4-(4-hydroxybenzyloxyimino)-4-phenylbutyrate (500 mg), potassium carbonate (442 mg) and N,N-dimethylformamide (10 ml) was stirred at room temperature for 18 hours. Water was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain methyl E-4-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]benzyloxyimino]-4-phenylbutyrate (507 mg, yield 67%) as a colorless oil from an ethyl acetate-hexane (1:3, v/v)-eluted fraction.

Workup

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

Sources & evidence

ORD record
ord-d534945bf9c64a44b8343b07ce8e4085
Source dataset
uspto-grants-2005_08
Patent number
US06924300B2

Reaction notes

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