Process for the preparation of ionic liquids with alkyl sulfate and functionalized alkyl sulfate anions

Process for the preparation of ionic liquids with alkyl sulfate and functionalized alkyl sulfate anions

The invention relates to a process for the preparation of ionic liquids of general formula (cation)(R'-O-SO3). The process includes the step of treating the compound of formula (cation)(R-O-SO3) with an alcohol, or mixture of different alcohols, of the formula R'-OH optionally in the prese...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VAN HAL ROY, HILGERS CLAUS, WASSERSCHEID PETER
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to a process for the preparation of ionic liquids of general formula (cation)(R'-O-SO3). The process includes the step of treating the compound of formula (cation)(R-O-SO3) with an alcohol, or mixture of different alcohols, of the formula R'-OH optionally in the presence of a catalyst to form the desired ionic liquid and the by-product R-OH, which is optionally removed during the reaction or after completion of the reaction. The compound of formula (cation)(R-O-SO3) can be prepared by alkylating a tertiary or aromatic amine with a dialkylsulfate.