FIELD: technological processes.
SUBSTANCE: invention relates to basic organic and petrochemical synthesis and can be used in the production of 4,4-dimethyl-1,3-dioxane by condensation of isobutylene and formaldehyde. Proposed is a porous polyphenylenephthalide as a heterogeneous cocatalyst. Synthesis of DMD is carried out in the presence of phosphoric acid, taken as the basic acid catalyst.
EFFECT: increasing the selectivity of the formation of 4,4-dimethyl-1,3-dioxane.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| USE OF POROUS POLYARYLENEPHTHALIDE TO INCREASE SELECTIVITY WHEN PRODUCING 4,4-DIMETHYL-1,3-DIOXANE | 2021 |
|
RU2768818C1 |
| METHOD FOR THE PREPARATION OF 4,4-DIMETHYL-1,3-DIOXANE | 2018 |
|
RU2663292C1 |
| APPLICATION OF CARBON NANOTUBES TO INCREASE SELECTIVITY IN PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE | 2016 |
|
RU2658839C2 |
| APPLICATION OF SYNTHETIC ZEOLITES FOR INCREASING SELECTIVITY IN THE PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE (OPTIONS) | 2016 |
|
RU2668276C2 |
| USE OF CARBON NANOTUBES TO INCREASE SELECTIVITY IN THE PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE | 2021 |
|
RU2764519C1 |
| METHOD FOR PRODUCING 4,4-DIMETHYL-1,3-DIOXANE USING POLYARYLENE PHTHALIDE | 2021 |
|
RU2764518C1 |
| METHOD OF PRODUCING 4,4-DIMETHYL-1,3-DIOXANE (VERSIONS) | 2016 |
|
RU2631429C1 |
| METHOD OF PRODUCING 4,4-DIMETHYL-1,3-DIOXANE | 2016 |
|
RU2624678C1 |
| METHOD FOR PRODUCING 4,4-DIMETHYL-1,3-DIOXANE USING CARBON NANOTUBES | 2021 |
|
RU2764517C1 |
| METHOD FOR OBTAINING 4,4-DIMETHYL-1,3-DIOXANE (VARIANTS) | 2021 |
|
RU2764520C1 |
