Hydrochloric Acid → Methyl 2-(chloromethyl)-4-pyridinecarboxylate

HRID 1196510Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1196510
O[CH2:2][C:3]1[CH:8]=[C:7]([C:9]([O:11][CH3:12])=[O:10])[CH:6]=[CH:5][N:4]=1.[ClH:13]>COC(=O)C>[Cl:13][CH2:2][C:3]1[CH:8]=[C:7]([C:9]([O:11][CH3:12])=[O:10])[CH:6]=[CH:5][N:4]=1

Komponenten

4

Edukt 2

HCID 313Hydrochloric AcidHCID 13276248Methyl 2-(hydroxymethyl)pyridine-4-carboxylate

Produkt 1

HCID 14625089Methyl 2-(chloromethyl)-4-pyridinecarboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6584Methyl AcetateLösungsmittel

Versuchsvorschrift

A solution of the product of stage (ii) in methylacetate (5 ml) was treated with ethereal hydrogen chloride (5 ml). The resulting solid was collected by filtration and added to thionyl chloride (7.5 ml) at 0°-5°. The mixture was stirred at 0°-5° for 3 h and then at ambient temperature for 1 h. Diethyl ether (100 ml) was added and the resulting solid was collected by filtration and washed with diethylether (2×50 ml), to give the title compound as a solid (1.7 g) T.l.c. Silica dichloromethane/methanol/ammonia 75:10:2 Rf 0.8.

Aufarbeitung

  1. filtrationThe resulting solid was collected by filtration
  2. additionadded to thionyl chloride (7.5 ml) at 0°-5°
  3. waitat ambient temperature for 1 h
  4. additionDiethyl ether (100 ml) was added
  5. filtrationthe resulting solid was collected by filtration
  6. washwashed with diethylether (2×50 ml)

Quellen und Nachweise

ORD-Eintrag
ord-f5b83c88dd044360bd4cb79d414dd4b2
Quelldatensatz
uspto-grants-1992_05
Patentnummer
US05114945

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