1-Butyl-3-methylimidazolium methanesulfonate, CAS: 342789-81-5

Key Applications:

Green Solvent for Catalysis and Organic Synthesis

• Serves as a thermally stable, non‑volatile reaction medium for acid‑catalyzed transformations, including esterifications, alkylations, and dehydration reactions.
• Enhances catalyst recyclability and selectivity in homogeneous and heterogeneous catalytic systems.
• Supports metal‑catalyzed cross‑coupling and oxidation reactions where polar, protic ionic liquids improve turnover efficiency.

Medium for Biocatalysis and Enzyme Stabilization

• Provides a tunable, low‑volatility environment that can stabilize enzymes and improve substrate solubility in biotransformations.
• Used in lipase‑catalyzed esterification and transesterification processes where methanesulfonate anions enhance reaction rates.

Electrochemical and Battery Research

• Functions as a conductive, thermally robust electrolyte component for electrochemical cells, supercapacitors, and redox systems.
• Offers wide electrochemical stability windows and high ionic conductivity, supporting studies in next‑generation energy storage materials.

Extraction, Separation, and Purification Processes

• Effective in liquid–liquid extraction of metal ions, dyes, and bioactive compounds due to its polarity and strong hydrogen‑bonding capacity.
• Applied in separation of azeotropic or thermally sensitive mixtures where conventional solvents underperform.

Biomass Processing and Renewable Feedstocks

• Facilitates dissolution and fractionation of lignocellulosic biomass, enabling downstream conversion to biofuels and biopolymers.
• Supports selective extraction of lignin, hemicellulose, and platform chemicals under mild conditions.

Polymerization and Materials Science

• Used as a solvent or co‑solvent in polymerization reactions requiring controlled ionic environments.
• Enhances dispersion of nanoparticles, dyes, and fillers in advanced materials formulations.

Surfactant‑Like Behavior in Colloids and Micelles

• The methanesulfonate anion contributes to microstructure formation in colloidal systems, enabling applications in templating, emulsification, and nanostructured material synthesis.

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