Sodium Bicarbonate → 1-(4-Methoxybenzyl)-5-bromo-4-methyl-3-amino-2-pyridone

HRID 1387274

Reaktionsgleichung

Reaktionsgleichung von HRID 1387274
[CH3:1][O:2][C:3]1[CH:21]=[CH:20][C:6]([CH2:7][N:8]2[CH:13]=[C:12]([Br:14])[C:11]([CH3:15])=[C:10]([N+:16]([O-])=O)[C:9]2=[O:19])=[CH:5][CH:4]=1.C([O-])(O)=O.[Na+]>C(O)(=O)C.Cl.O>[CH3:1][O:2][C:3]1[CH:21]=[CH:20][C:6]([CH2:7][N:8]2[CH:13]=[C:12]([Br:14])[C:11]([CH3:15])=[C:10]([NH2:16])[C:9]2=[O:19])=[CH:5][CH:4]=1

Komponenten

6

Edukt 2

HCID 516892Sodium BicarbonateHCID 217064791-(4-Methoxybenzyl)-5-bromo-4-methyl-3-nitro-2-pyridone

Produkt 1

HCID 217064931-(4-Methoxybenzyl)-5-bromo-4-methyl-3-amino-2-pyridoneAusbeute 61,5 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 176Acetic AcidLösungsmittelHCID 313Hydrochloric AcidLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

To a stirred solution of 1-(4-methoxybenzyl)-5-bromo-4-methyl-3-nitro-2-pyridone (0.23 g, 0.65 mmol) in glacial acetic acid (3 mL) was added a solution of stannous chloride dihydrate (1.0 g) in concentrated HCl (2 mL). After 3.5 hours, the reaction mixture was diluted with water, neutralized with NaHCO3, and extracted with methylene chloride. The organic phase was dried, filtered, and evaporated to give 1-(4-methoxybenzyl)-5-bromo-4-methyl-3-amino-2-pyridone (0.13 g, 0.40 mmol, 61%).

Aufarbeitung

  1. extractionextracted with methylene chloride
  2. customThe organic phase was dried
  3. filtrationfiltered
  4. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-ad6bca69d5a14c9c832686debad741b4
Quelldatensatz
uspto-grants-2001_07
Patentnummer
US06268365B1

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