TCI B5569 1-Butyl-3-methylimidazolium Hydrogen Sulfate (CAS 262297-13-2) is an imidazolium-based ionic liquid with hydrogen sulfate anion, serving as a green solvent and acidic catalyst in organic synthesis. It is widely applied in esterification, Friedel-Crafts alkylation, and biomass conversion reactions such as fructose dehydration to 5-HMF. Its Brønsted acidic character and excellent thermal stability make it a versatile tool for sustainable chemistry and specialty synthesis applications.
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- Ionic Liquids 2026-06-08 · p. 7
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