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

HRID 584522Notes

Reaction equation

HRID 584522 reaction equation
Cl[CH2:2][C:3]1[O:7][N:6]=[C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[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[O:7][N:6]=[C:5]([C:8]4[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=4)[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 9667145-(Chloromethyl)-3-phenyl-1,2,4-oxadiazoleHCID 11089565ethyl (6E)-6-[(4-hydroxyphenyl)methoxyimino]-6-phenylhexanoate

Product 1

HCID 22344629ethyl (6E)-6-phenyl-6-[[4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methoxy]phenyl]methoxyimino]hexanoateYield 92%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

A mixture of 5-chloromethyl-3-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-(3-phenyl-1,2,4-oxadiazol-5-ylmethoxy)benzyloxyimino]hexanoate (789 mg, yield 92%) as a colorless oil from an ethyl acetate-hexane (2:9, 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-8cd123fa65a9488d87bd7336346b72e8
Source dataset
uspto-grants-2005_08
Patent number
US06924300B2

Reaction notes

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