Journal
MOLECULES
Volume 14, Issue 6, Pages 2235-2245Publisher
MDPI
DOI: 10.3390/molecules14062235
Keywords
ionic liquids; N-heterocyclic carbenes; alkylation; imidazolium cation; substitution
Funding
- Middle Tennessee State University
- National Science Foundation [0321211]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0321211] Funding Source: National Science Foundation
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A convenient route for the preparation of C2-substituted imidazolium ionic liquids is reported. This method involves the alkylation of N-heterocyclic carbenes, which are readily generated from the C2-unsubstituted imidazolium ionic liquids. It works well for non-functionalized alkyl chlorides, and less well for alkyl bromides and iodides, likely due to competing elimination reactions. The resulting C2-substituted salts can be transformed into ionic liquids via standard anion metathesis reactions.
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