Methanesulfonic Acid → Ethyl 4,4,4-trifluoro-3-hydroxybutanoate

HRID 381798

Reaktionsgleichung

Reaktionsgleichung von HRID 381798
[F:1][C:2]([F:12])([F:11])[C:3](=[O:10])[CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6].CS(O)(=O)=O.[H][H]>[Pt]>[F:1][C:2]([F:11])([F:12])[CH:3]([OH:10])[CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6]

Komponenten

5

Reaktionsbedingungen

Temperatur
40 °C

Versuchsvorschrift

Ethyl 4,4,4-trifluoroacetoacetate (50 g), under a blanket of nitrogen gas, is heated to 40° C. and treated with platinum (0.1 g of 5% Pt/C, 0.01% load) and methanesulfonic acid (1.5 g, 2.9% load). Hydrogen is charged to a pressure of 5 bars, and the mixture agitated at 40° C. for 6h. After filtration to remove the catalyst, 25.3 g (50% yield) of ethyl 4,4,4-trifluoro-3-hydroxybutyrate is obtained.

Aufarbeitung

  1. filtrationAfter filtration
  2. customto remove the catalyst

Quellen und Nachweise

ORD-Eintrag
ord-d5a853887b8d4c2fb460537e3b147d6c
Quelldatensatz
uspto-grants-2001_10
Patentnummer
US06307094B1

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