2-Acetylbutyrolactone → HCID 178432037, Verbindung

HRID 965992Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 965992
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-301fb18165de450c9d1f7329c9ad1eec
Quelldatensatz
uspto-grants-2005_10
Patentnummer
US06951865B2

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