Triphenylphosphine → N-[3-(3-methyl-but-3-enyloxy)-phenyl]-acetamide

HRID 470010Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 470010
[OH:1][C:2]1[CH:3]=[C:4]([NH:8][C:9](=[O:11])[CH3:10])[CH:5]=[CH:6][CH:7]=1.C(NC1C=C(OC(=O)C)C=CC=1)=O.[CH3:25][C:26](=[CH2:30])[CH2:27][CH2:28]O.CCOC(/N=N/C(OCC)=O)=O.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>C1C=CC=CC=1.O>[CH3:30][C:26](=[CH2:25])[CH2:27][CH2:28][O:1][C:2]1[CH:3]=[C:4]([NH:8][C:9](=[O:11])[CH3:10])[CH:5]=[CH:6][CH:7]=1

Komponenten

8

Edukt 5

HCID 11776TriphenylphosphineHCID 121243-HydroxyacetanilideHCID 129883-Methyl-3-buten-1-olHCID 5462977Diethyl azodicarboxylateHCID 57470213Acetic acid 3-formylamino-phenyl ester

Produkt 1

HCID 57567384N-[3-(3-methyl-but-3-enyloxy)-phenyl]-acetamideAusbeute 52 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 241BenzeneLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

A suspension of the mixture of N-(3-hydroxy-phenyl)-acetamide and acetic acid 3-formylamino-phenyl ester (18.12 g, 0.12 mol), 3-methyl-but-3-en-1-ol (8.6 g, 0.1 mol), DEAD (87 g, 0.2 mol) and Ph3P (31.44 g, 0.12 mol) in benzene (250 mL) was heated at reflux overnight and then cooled to room temperature. The reaction mixture was poured into water and the organic layer was separated. The aqueous phase was extracted with EtOAc (300×3 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated. The residue was purified by column chromatography to give N-[3-(3-methyl-but-3-enyloxy)-phenyl]-acetamide (11 g, 52%).

Aufarbeitung

  1. temperaturewas heated
  2. temperatureat reflux overnight
  3. customthe organic layer was separated
  4. extractionThe aqueous phase was extracted with EtOAc (300×3 mL)
  5. washThe combined organic layers were washed with brine
  6. dry with materialdried over anhydrous Na2SO4
  7. concentrationconcentrated
  8. customThe residue was purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-a4af9d3a0f5b4404b7110f44889c9b87
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08629162B2

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