Acetone → 3-(2-Quinolinylmethoxy)benzeneacetic acid

HRID 414847

Reaktionsgleichung

Reaktionsgleichung von HRID 414847
Cl[CH2:2][C:3]1[CH:12]=[CH:11][C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]=1.C(O[C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([OH:23])[CH:18]=1)(=O)C.[C:24](=[O:27])([O-])[O-:25].[K+].[K+].[CH3:30]C(C)=O>[I-].[K+]>[N:4]1[C:5]2[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=2)[CH:11]=[CH:12][C:3]=1[CH2:2][O:23][C:19]1[CH:18]=[C:17]([CH2:30][C:24]([OH:25])=[O:27])[CH:22]=[CH:21][CH:20]=1

Komponenten

6

Edukt 4

HCID 180AcetoneHCID 5055AcetylresorcinolHCID 11430Potassium CarbonateHCID 203942-(Chloromethyl)quinoline

Produkt 1

HCID 1285433-(2-Quinolinylmethoxy)benzeneacetic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 4875Potassium IodideKatalysator

Versuchsvorschrift

A mixture of 2-chloromethyl quinolin (2.3 g, 13.3 mmol), 3-hydroxyphenyl acetate (2.2 g, 13.3 mmol), excess powdered potassium carbonate (10 g) and a catalytic amount of potassium iodide (0.1 g) in dry acetone (150 ml) was refluxed overnight (18 hr.). The reaction mixture was filtered, and the filtrate was concentrated, taken up in ethyl acetate, and the organic extract was washed with a 5% NaOH solution and brine. After drying over MgSO4, all volatiles were removed from the organic extract, and the crude oil was chromatographed on silica gel (20% ethylacetate in hexanes) to obtain the methyl ester of the desired product (3.0 g).

Aufarbeitung

  1. filtrationThe reaction mixture was filtered
  2. concentrationthe filtrate was concentrated
  3. extractionthe organic extract
  4. washwas washed with a 5% NaOH solution and brine
  5. dry with materialAfter drying over MgSO4
  6. customall volatiles were removed from the organic extract
  7. customthe crude oil was chromatographed on silica gel (20% ethylacetate in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-19d90a457c5d4b94bcb767515013d16d
Quelldatensatz
uspto-grants-1988_12
Patentnummer
US04794188

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