1-Butyl-2,3-dimethylimidazolium chloride, CAS: 98892-75-2

Key Applications:

Solvent and Reaction Medium

• Functions as a stable, low‑volatility ionic liquid for organic synthesis where enhanced cation steric bulk is beneficial.
• Supports transition‑metal‑catalyzed transformations, including cross‑coupling and hydrogenation, by providing a polar, non‑coordinating environment.
• Useful in acid‑sensitive or moisture‑sensitive systems due to its thermal robustness and low vapor pressure.

Electrochemical and Materials Applications

• Serves as an electrolyte component or ionic additive in electrochemical cells, benefiting from its wide electrochemical window and high ionic conductivity.
• Employed in electrodeposition studies where chloride coordination influences metal nucleation and morphology.
• Acts as a structuring agent in polymer–ionic liquid composites, improving ion transport and mechanical stability.

Extraction and Separation Processes

• Effective in biphasic extraction systems for metal ions, organic molecules, and catalytic species, leveraging its tunable polarity and chloride‑based coordination behavior.
• Supports liquid–liquid extraction workflows in analytical chemistry and process development.

Catalysis and Phase‑Transfer Systems

• Functions as a phase‑transfer medium for reactions requiring chloride availability or enhanced solvation of polar intermediates.
• Can be incorporated into supported ionic liquid phases (SILPs) for heterogeneous catalysis, improving catalyst dispersion and recyclability.

Thermal and Process Engineering Uses

• Suitable as a heat‑transfer or thermal‑stabilizing component in high‑temperature process environments where conventional solvents degrade.
• Utilized in studies of ionic‑liquid structure–property relationships, particularly those involving steric modification of imidazolium cations.

Research and Method Development

• Applied in spectroscopic and mechanistic investigations of ionic‑liquid microenvironments, ion pairing, and solvation dynamics.
• Supports formulation screening in materials science, electrochemistry, and catalysis where chloride‑based ionic liquids serve as benchmarks or tuning agents.

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