1,1,8,8-Tetramethoxyoctane → Octanedial

HRID 622171Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 622171
C[O:2][CH:3](OC)[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH:10](OC)[O:11]C>O>[CH:10](=[O:11])[CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH:3]=[O:2]

Komponenten

3

Edukt 1

HCID 2487551,1,8,8-Tetramethoxyoctane

Produkt 1

HCID 69491Octanedial

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Versuchsvorschrift

When the formation of the acetal is complete, the solution is neutralized under cold conditions and diluted with water. In the course of this, 1,1,8,8-tetramethoxyoctane separates out as a water-insoluble oil; it is separated off and the remaining solution is extracted with petroleum ether. The product phases are combined, freed from petroleum ether and fractionated in vacuo. This gives 322 g of 1,1,8,8-tetramethoxyoctane boiling at 147°-149° C./30, corresponding to 91.7% of theory.

Aufarbeitung

  1. customit is separated off
  2. extractionthe remaining solution is extracted with petroleum ether

Quellen und Nachweise

ORD-Eintrag
ord-9eb06887a20d463ea7ccb0d40687ef27
Quelldatensatz
uspto-grants-1988_09
Patentnummer
US04769464

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