2-Acetylbutyrolactone → HCID 178432037, Verbindung

HRID 890170Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 890170
Br.[NH2:2][C:3]1[NH:7][N:6]=[C:5]([CH3:8])[C:4]=1[Br:9].[C:10]([CH:13]1[CH2:18][CH2:17][O:16][C:14]1=[O:15])(=O)[CH3:11]>C(O)C>[Br:9][C:4]1[C:5]([CH3:8])=[N:6][N:7]2[C:14]([OH:15])=[C:13]([CH2:18][CH2:17][OH:16])[C:10]([CH3:11])=[N:2][C:3]=12

Komponenten

4

Versuchsvorschrift

A solution of 5-amino-4-bromo-3-methylpyrazole hydrobromide (13 g, 51 mmol) and α-acetyl-γ-butyrolactone (6.8 g, 53 mmol) in ethanol (65 mL) was heated under reflux for nine hours. After cooling to room temperature, the resulting crystals were collected by filtration, to give the title compound (4.6 g) as white crystals.

Aufarbeitung

  1. temperatureunder reflux for nine hours
  2. filtrationthe resulting crystals were collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-9f5ec6ec4ee443db95100004c7794e99
Quelldatensatz
uspto-grants-2006_02
Patentnummer
US06995163B2

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