Reaktion #94081

Reaktionsgleichung

diethyl ketone

β-methoxybutyraldehyde

sodium methylate

→

2,5,6-trimethyl-2-cyclohexen-1-one

Ausbeute 56.0%

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturunder reflux
2. 2
   TemperaturThe whole is then heated for another hour
3. 3
   Temperaturunder reflux

Vorschrift

102 g of β-methoxybutyraldehyde is dripped in the course of one hour into a mixture of 500 g of diethyl ketone and 10 g of a 30% solution of sodium methylate in methanol which is boiling under reflux. The whole is then heated for another hour under reflux. The reaction mixture is processed as described in Example 2. 77 g of 2,5,6-trimethyl-2-cyclohexen-1-one is obtained, i.e. a 56% yield with reference to β-methoxybutyraldehyde.

Quelle