Sulfuric Acid → 3-(Pyridin-4-yl)propanoic acid

HRID 1822187Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1822187
[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][CH2:8][C:9]([O:11]CC)=[O:10])=[CH:3][CH:2]=1.S(=O)(=O)(O)O>[OH-].[Na+]>[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][CH2:8][C:9]([OH:11])=[O:10])=[CH:3][CH:2]=1

Komponenten

4

Edukt 2

HCID 1118Sulfuric AcidHCID 12229233Ethyl isonicotinylacetate

Produkt 1

HCID 2332433-(Pyridin-4-yl)propanoic acidAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

A solution of ethyl 3-(pyridin-4-yl)propionate (17.14 g, 96 mmol; synthesized according to WO, A, 01/42244) in aqueous sodium hydroxide (2N, 100 ml) was heated under reflux for 1 hour, cooled, then adjusted pH 4 to 5 with conc. sulfuric acid, filtered to give precipitates which were washed with water, and then with hexane, and dried to afford 3-(pyridin-4-yl)propionic acid (10.15 g, 70%) as crystals.

Aufarbeitung

  1. temperatureunder reflux for 1 hour
  2. temperaturecooled
  3. filtrationfiltered
  4. customto give
  5. customprecipitates which
  6. washwere washed with water
  7. dry with materialwith hexane, and dried

Quellen und Nachweise

ORD-Eintrag
ord-97dab19923534c1195d444cc8b61ce7a
Quelldatensatz
uspto-grants-2009_10
Patentnummer
US07608716B2

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