Reaktion #549749

Reaktionsgleichung

3-methylthiopropionaldehyde

cyclohexane

para-toluenesulfonic acid

2,3-butanediol

→

4,5-DIMETHYL-2-[2-(METHYLTHIO)ETHYL]-1,3-DIOXOLANE

Lösungsmittel

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeInto a 100 ml reaction flask
2. 2
   Sonstigeequipped with spin bar
3. 3
   Temperaturreflux condenser
4. 4
   Temperaturheating mantle
5. 5
   TemperaturThe reaction mass is then heated
6. 6
   Temperaturto reflux
7. 7
   Sonstigeis removed

Vorschrift

Into a 100 ml reaction flask equipped with spin bar, reflux condenser, heating mantle and hot plate with magnetic stirring apparatus is placed 5 ml cyclohexane, 0.2 grams para-toluenesulfonic acid and 3.5 grams (0.04 moles) of 2,3-butanediol. Over a period of 30 minutes, 4.1 grams (0.04 moles) of 3-methylthiopropionaldehyde is added to the reaction mass. The reaction mass is then heated to reflux and refluxed for a period of 7 hours during which water of reaction is removed.

Quelle