Ethyl isobutyrylacetate → HCID 69052716, Verbindung

HRID 2101570Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2101570
Cl.[NH2:2][CH2:3][C:4]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)=O.[C:12]([CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])(=O)[CH:13]([CH3:15])[CH3:14].C([O-])(=O)C.[Na+]>O>[CH2:21]([O:20][C:18]([C:17]1[C:4]([C:6]2[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=2)=[CH:3][NH:2][C:12]=1[CH:13]([CH3:15])[CH3:14])=[O:19])[CH3:22]

Komponenten

5

Edukt 3

HCID 81583Ethyl isobutyrylacetateHCID 517045Sodium AcetateHCID 2723597Ethanone, 2-amino-1-phenyl-, hydrochloride (1:1)

Produkt 1

HCID 69052716HCID 69052716, VerbindungAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture of 2-aminoacetophenone hydrochloride (1 equiv.), ethyl isobutyrylacetate (1.2 equiv.) and sodium acetate (2.4 equiv.) in H2O was stirred at 100° C. for 18 hours and then cooled to room temperature. The aqueous layer was decanted off and the oil was dissolved in ethyl acetate. It was then washed with water and brine and then dried to give (93%) of 2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic acid ethyl ester as a red brown oil.

Aufarbeitung

  1. temperaturecooled to room temperature
  2. customThe aqueous layer was decanted off
  3. dissolutionthe oil was dissolved in ethyl acetate
  4. washIt was then washed with water and brine
  5. customdried

Quellen und Nachweise

ORD-Eintrag
ord-820a04ebc34d44a0b3077b2d2f2f45eb
Quelldatensatz
uspto-grants-2009_08
Patentnummer
US07572924B2

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