Reaktion #474028

Reaktionsgleichung

2,6-dimethyl-gamma-pyrone

hydrogen

→

cis-2,6-Dimethyltetrahydropyran-4-one

Ausbeute 88.0%

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationThe medium is filtered
2. 2
   Sonstigethe solvent is evaporated off
3. 3
   Sonstige8.81 g of cis-2,6-dimethyltetrahydro-pyran-4-one are recovered

Vorschrift

10 g of 2,6-dimethyl-gamma-pyrone are dissolved in 200 ml of methanol and then 0.8 g of palladium-on-charcoal at 10% is added. The reaction mixture is stirred for 24 hours under 25 atmospheres of hydrogen. The medium is filtered and then the solvent is evaporated off. 8.81 g of cis-2,6-dimethyltetrahydro-pyran-4-one are recovered. Yield=88%.

Quelle