Hydrochloric Acid → 2-(2,3-Difluoro-4-(2-hydroxyethyl)phenoxy)acetaldehyde

HRID 1689398

Reaktionsgleichung

Reaktionsgleichung von HRID 1689398
Cl.C([O:4][CH:5](OCC)[CH2:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([CH2:14][CH2:15][OH:16])=[C:10]([F:17])[C:9]=1[F:18])C>O1CCOCC1.O>[F:18][C:9]1[C:10]([F:17])=[C:11]([CH2:14][CH2:15][OH:16])[CH:12]=[CH:13][C:8]=1[O:7][CH2:6][CH:5]=[O:4]

Komponenten

5

Edukt 2

HCID 313Hydrochloric AcidHCID 579889892-(4-(2,2-Diethoxyethoxy)-2,3-difluorophenyl)ethanol

Produkt 1

HCID 866367532-(2,3-Difluoro-4-(2-hydroxyethyl)phenoxy)acetaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

Concentrated hydrochloric acid (5 mL) was added to a solution of 2-(4-(2,2-diethoxyethoxy)-2,3-difluorophenyl)ethanol (example 77, step c) (0.49 g) in 1,4-dioxane (10 mL) and the resulting mixture was stirred for 1 h. The mixture was carefully diluted with water (50 mL) and extracted with ethyl acetate (3×50 mL). The combined organics were washed with water (50 mL) and brine (50 mL), dried over sodium sulphate, filtered and evaporated to give the subtitled compound, which was used directly. Yield 0.31 g.

Aufarbeitung

  1. extractionextracted with ethyl acetate (3×50 mL)
  2. washThe combined organics were washed with water (50 mL) and brine (50 mL)
  3. dry with materialdried over sodium sulphate
  4. filtrationfiltered
  5. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-995d961e038c419bb368d4306e5c036d
Quelldatensatz
uspto-grants-2012_04
Patentnummer
US08148373B2

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