FIELD: organic synthesis.
SUBSTANCE: invention relates to the field of basic organic and petrochemical synthesis, namely to a method for producing 4,4-dimethyl-1,3-dioxane (DMD) from tert-butanol and formaldehyde by condensation of tert-butanol with an aqueous solution of formaldehyde in the presence of phosphoric acid at elevated temperature and pressure and subsequent separation of DMD from the reaction mass, while condensation is carried out in the presence of carbon nanotubes with a pore diameter of 7-11 Å, the content of which is maintained in an amount of 3.5-5 wt. % of the reaction mass.
EFFECT: increased selectivity of DMD formation.
1 cl, 1 tbl, 2 ex
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| METHOD OF PRODUCING 4,4-DIMETHYL-1,3-DIOXANE (VERSIONS) | 2016 |
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| APPLICATION OF SYNTHETIC ZEOLITES FOR INCREASING SELECTIVITY IN THE PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE (OPTIONS) | 2016 |
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| METHOD FOR THE PREPARATION OF 4,4-DIMETHYL-1,3-DIOXANE | 2018 |
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