Dimethylformamide → ethyl (6E)-6-phenyl-6-[[4-[(5-phenyl-1,2,4-oxadiazol-3-yl)methoxy]phenyl]methoxyimino]hexanoate

HRID 2299873Notes

Reaction equation

HRID 2299873 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:39]=[CH:38][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)\[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C.CCCCCC.O>[C:32]1(/[C:22](=[N:21]/[O:20][CH2:19][C:18]2[CH:17]=[CH:16][C:15]([O:14][CH2:2][C:3]3[N:7]=[C:6]([C:8]4[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=4)[O:5][N:4]=3)=[CH:39][CH:38]=2)/[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1

Participants

7

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 3021543-(Chloromethyl)-5-phenyl-1,2,4-oxadiazoleHCID 11089565ethyl (6E)-6-[(4-hydroxyphenyl)methoxyimino]-6-phenylhexanoate

Product 1

HCID 22344617ethyl (6E)-6-phenyl-6-[[4-[(5-phenyl-1,2,4-oxadiazol-3-yl)methoxy]phenyl]methoxyimino]hexanoateYield 75%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

A mixture of 3-chloromethyl-5-phenyl-1,2,4-oxadiazole (362 mg), ethyl E-6-(4-hydroxybenzyloxyimino)-6-phenylhexanoate (600 mg), potassium carbonate (467 mg) and N,N-dimethylformamide (7 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 ethyl E-6-phenyl-6-[4-(5-phenyl-1,2,4-oxadiazol-3-ylmethoxy)benzyloxyimino]hexanoate (649 mg, yield 75%) as a colorless oil from an ethyl acetate-hexane (1:4, 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-e07794903af849b5a350b6ec0a8eb256
Source dataset
uspto-grants-2002_12
Patent number
US06495581B1

Reaction notes

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