Acetic Acid → ethyl (2E)-2-[[3-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoate

HRID 1070146Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1070146
[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:16]=[C:17]([CH:21]=[CH:22][CH:23]=1)[CH2:18][O:19][NH2:20].O=[C:25]([C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[CH2:26][CH2:27][CH2:28][CH2:29][C:30]([O:32][CH2:33][CH3:34])=[O:31].C(O)(=O)C.C([O-])(=O)C.[Na+]>C(OCC)(=O)C.CCCCCC.O.C(O)C>[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:16]=[C:17]([CH:21]=[CH:22][CH:23]=1)[CH2:18][O:19]/[N:20]=[C:29](\[CH2:28][CH2:27][CH2:26][CH2:25][C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1)/[C:30]([O:32][CH2:33][CH3:34])=[O:31]

Komponenten

8

Edukt 4

HCID 176Acetic AcidHCID 517045Sodium AcetateHCID 3681727Ethyl 6-oxo-6-phenylhexanoateHCID 109249463-(5-Methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyamine

Produkt 1

HCID 88202258ethyl (2E)-2-[[3-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoateAusbeute 58,1 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittelHCID 21226206Ethyl acetate hexaneLösungsmittel

Versuchsvorschrift

After a mixture of 3-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyamine (600 mg), ethyl 6-oxo-6-phenylhexanoate (452 mg), acetic acid (0.331 ml), sodium acetate (317 mg) and ethanol (20 ml) was heated to reflux for 15 hours, the mixture was cooled to room temperature. 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-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyimino]-6-phenylhexanoate (590 mg, yield 58%) as a colorless oil from an ethyl acetate-hexane (2:9, v/v)-eluted fraction.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux for 15 hours
  3. extractionextracted with ethyl acetate
  4. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-416bd9e55a0942f8a01316bbeec1cc80
Quelldatensatz
uspto-grants-2001_06
Patentnummer
US06251926B1

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