Sodium Hydroxide → 2-bromo-6-ethoxy-3-nitropyridine

HRID 2407763Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2407763
[N+:1]([O-:4])([O-])=[O:2].[K+].[Br:6][C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([O:13][CH2:14][CH3:15])[N:8]=1.[OH-].[Na+]>S(=O)(=O)(O)O>[Br:6][C:7]1[C:12]([N+:1]([O-:4])=[O:2])=[CH:11][CH:10]=[C:9]([O:13][CH2:14][CH3:15])[N:8]=1

Komponenten

5

Edukt 3

HCID 14798Sodium HydroxideHCID 24434Potassium NitrateHCID 12010182-Bromo-6-ethoxypyridine

Produkt 1

HCID 8172142-bromo-6-ethoxy-3-nitropyridineAusbeute 72 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1118Sulfuric AcidLösungsmittel

Versuchsvorschrift

Potassium nitrate (0.625 g) was added with stirring to a solution of the compound prepared in Example 278 (0.500 g) in sulfuric acid (2.47 mL) at 0° C. The mixture was allowed to warm up to room temperature and then heated slowly to 75° C. After heating for 2 hours, the mixture was cooled to room temperature, poured into ice, pH adjusted to 4 with 10% aqueous sodium hydroxide, and the precipitated to obtain the title compound (0.440 g) having the following physical data.

Aufarbeitung

  1. temperatureheated slowly to 75° C
  2. temperatureAfter heating for 2 hours
  3. temperaturethe mixture was cooled to room temperature
  4. additionpoured into ice
  5. customthe precipitated

Quellen und Nachweise

ORD-Eintrag
ord-35655323788e4db5a3b81ad505cb993d
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08809538B2

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