APPLICATION OF POROUS POLYPHENYLENEPHTHALIDE TO INCREASE SELECTIVITY IN PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE

APPLICATION OF POROUS POLYPHENYLENEPHTHALIDE TO INCREASE SELECTIVITY IN PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE

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...

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Hauptverfasser: Ovchinnikov Grigorij Andreevich, Salazkin Sergej Nikolaevich, Vakulin Ivan Valentinovich, Talipov Rifkat Faatovich, Krajkin Vladimir Aleksandrovich, Ishmuratov Gumer Yusupovich, Nasyrov Ildus Shajkhitdinovich, Tukhvatshin Vadim Salavatovich
Format: Patent
Sprache:eng ; rus
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung: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 Изобретение относится к области основного органического и нефтехимического синтеза и может быть использовано в производстве 4,4-диметил-1,3-диоксана путем конденсации изобутилена и формальдегида. Предложен пористый полифениленфталид в качестве гетерогенного сокатализатора. При этом синтез ДМД проводят в присутствии фосфорной кислоты, взятой в качестве базового кислотного катализатора. Технический результат: увеличение селективности образования 4,4-диметил-1,3-диоксана. 1 з.п. ф-лы, 1 табл., 2 пр.