Reaktion #1283929

Reaktionsgleichung

4-methyl-benzene-sulphonic acid

water

chloral hydrate

butyl alcohol

→

trichloro-acetaldehyde-dibutyl-acetal

Lösungsmittel

benzene

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe mixture is heated on a water-bath
2. 2
   Sonstigethe water separation
3. 3
   WaschenThe benzene is washed with water and sodium hydrogen carbonate
4. 4
   workup.DISTILLATIONdistilled off
5. 5
   workup.DISTILLATIONdistilled

Vorschrift

Into an apparatus supplied with a Dean-Stark water separator 7 g of chloral hydrate, 10 g of butyl alcohol, 0.1 g of 4-methyl-benzene-sulphonic acid and 50 ml of benzene are weighed. The mixture is heated on a water-bath and the water separation is continued for 10 hours. The benzene is washed with water and sodium hydrogen carbonate, then distilled off and the product is vacuum distilled.

Quelle