Acetyl bromide → 4-Bromo-1-oxo-2-(pyridin-2-yl)-1lambda~5~-pyridine

HRID 417755Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 417755
[N+]([C:4]1[CH:5]=[C:6]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][N:12]=2)[N+:7]([O-:10])=[CH:8][CH:9]=1)([O-])=O.C([Br:20])(=O)C>C(O)(=O)C>[Br:20][C:4]1[CH:5]=[C:6]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][N:12]=2)[N+:7]([O-:10])=[CH:8][CH:9]=1

Komponenten

4

Edukt 2

HCID 10482Acetyl bromideHCID 33312824-Nitro-2,2'-bipyridine-N-oxide

Produkt 1

HCID 181727784-Bromo-1-oxo-2-(pyridin-2-yl)-1lambda~5~-pyridineAusbeute 95 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

To 4-nitro-2,2′-bipyridyl-N-oxide (Wenkert, D.; Woodward, R. B. J. Org. chem. 48,283 (1983)) (5 g) dissolved in 30 mL acetic acid in a 100 ml round bottom flask was added 16 mL acetyl bromide. The yellow mixture was refluxed for 1.5 h and then rotovaporated to dryness. The resulting light yellow solid was sufficiently pure enough for the next step without further purification. Yield: 95%

Aufarbeitung

  1. temperatureThe yellow mixture was refluxed for 1.5 h
  2. customThe resulting light yellow solid was sufficiently pure enough for the next step without further purification

Quellen und Nachweise

ORD-Eintrag
ord-1f5b0111afdb4adb909c9a045992bea9
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08092662B2

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