1,3-Dioxane or m-dioxane is an organic compound with the molecular formula . It is a saturated six-membered heterocycle with two oxygen atoms in place of carbon atoms at the 1- and 3- positions. 1,4-Dioxane, which is of greater commercial value, is an isomer. Both dioxanes are colorless liquids.
1,3-Dioxane or m-dioxane is an organic compound with the molecular formula . It is a saturated six-membered heterocycle with two oxygen atoms in place of carbon atoms at the 1- and 3- positions. 1,4-Dioxane, which is of greater commercial value, is an isomer. Both dioxanes are colorless liquids.
==Preparation and derivatives== The parent 1,3-dioxane is prepared by the reaction of formaldehyde and 1,3-propanediol in the presence of Brönsted or Lewis acid catalysts.
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