Cyclohexane → 2-(Methoxymethyl)-1,3-dioxane

A mixture of 380 g (5 moles) of 1,3-propanediol, 479 g (5.5 moles) of 85% strength methoxyacetaldehyde and 250 ml of cyclohexane was heated with 5 g of the ion exchanger Lewasorb® AC 10 (Bayer Aktiengesellschaft) under a water separator until water no longer separated off. The ion exchanger was filtered off, the solvent was stripped off under reduced pressure and the residue was subjected to fractional distillation under reduced pressure. 587 g (89% yield) of 2-methoxymethyl-1,3-dioxane having a boiling range of 104° to 115° C./150 mbar were obtained.

1. customno longer separated off
2. filtrationThe ion exchanger was filtered off
3. distillationthe residue was subjected to fractional distillation under reduced pressure

ORD-Eintrag

ord-80d9d02c297f46b08212d1da65ade2f6

Quelldatensatz

uspto-grants-1991_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05003089