Process for the production of polyhydric alcohols
AssigneeKuraray Co., Ltd.
InventorsSunao Kyo, Katsuhiko Hayashi, Hidetsugu Tanaka, Hideaki Oka
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Abstract
Polyhydric alcohols can be produced in high selectivity from substituted 1,3-dioxanes containing at least one hydroxyalkyl group by heating, in the presence of water, said 1,3-dioxane or mixtures thereof in contact with boric acid, boric acid anhydride or a boron-containing compound capable of forming boric acid under the reaction conditions and recovering the polyhydric alcohols corresponding to said 1,3-dioxanes.
Claims7
Process for the production of polyhydric alcohols from a substituted 1,3-dioxane containing at least one hydroxy alkyl group in the molecule which comprises heating said 1,3-dioxane or mixtures thereof in contact with boric acid anhydride or a boric acid compound selected from the group consisting of boric acid, metaboric acid, hypoboric acid, tetraboric acid and their esters at a temperature of from about 90.degree. C. to 180.degree. C., blowing water in the form of steam into the reaction system and recovering said polyhydric alcohol.
Dependencies are inferred from the claim text.