5-(Methoxymethyl)furan-2-carboxylic acid → HCID 18780016, Verbindung

HRID 612295

Reaktionsgleichung

Reaktionsgleichung von HRID 612295
[CH3:1][O:2][CH2:3][C:4]1[O:8][C:7]([C:9]([OH:11])=[O:10])=[CH:6][CH:5]=1.[H][H]>C(OCC)(=O)C.[Rh]>[CH3:1][O:2][CH2:3][CH:4]1[O:8][CH:7]([C:9]([OH:11])=[O:10])[CH2:6][CH2:5]1

Komponenten

5

Edukt 2

HCID 11252275-(Methoxymethyl)furan-2-carboxylic acidHCID 178418361HCID 178418361, Verbindung

Produkt 1

HCID 18780016HCID 18780016, VerbindungAusbeute 102,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23948RhodiumKatalysatorHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of 5-methoxymethylfuran-2-carboxylic acid (3.10 g) in ethyl acetate (40 ml) was hydrogenated over 5% rhodium on carbon (200 mg) until hydrogen uptake ceased. The catalyst was filtered off and washed with ethyl acetate. The combined filtrates were evaporated to give the title compound as a colourless oil (3.26 g); νmax (film) 1750 cm-1 ; δH (CDCl3) 1.75-2.1 (2 H,m), 2.1-2.6(2 H,m,), 3.45 (3 H,s), 3.47 (1 H,dd, J 3 and 10 Hz), 3.74 (1 H,dd, J 4 and 10 Hz), 4.15-4.43 (1 H,m) and 4.43-4.63 (1 H,m).

Aufarbeitung

  1. filtrationThe catalyst was filtered off
  2. washwashed with ethyl acetate
  3. customThe combined filtrates were evaporated

Quellen und Nachweise

ORD-Eintrag
ord-5e86d55688514f5187e9eae1cbea9c97
Quelldatensatz
uspto-grants-1999_12
Patentnummer
US06001997

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