1-Benzyl-3-methylimidazolium hexafluorophosphate, CAS: 433337-11-2

Key Applications

Solvent and Medium for Organic Synthesis

• Serves as a hydrophobic ionic liquid for transition‑metal‑catalyzed reactions, including cross‑coupling, hydrogenation, and oxidation.
• Enhances reaction rates and selectivity due to strong cation–π interactions from the benzyl substituent.
• Supports biphasic catalysis where product separation is simplified by phase partitioning.

Extraction and Separation Processes

• Effective in liquid–liquid extraction of aromatic compounds, phenolics, and metal ions due to its high affinity for π‑rich substrates.
• Used in selective separation of transition metals and rare‑earth ions when paired with coordinating ligands.
• Suitable for partitioning hydrophobic organics from aqueous matrices.

Electrochemical and Materials Applications

• Functions as a stable electrolyte component in electrochemical cells, benefiting from the PF₆⁻ anion’s wide electrochemical window.
• Employed in electrodeposition studies, ionic‑liquid‑based supercapacitors, and conductive polymer processing.
• Supports formation of ionogels and polymer–ionic liquid composites with tunable conductivity.

Catalysis and Phase‑Transfer Systems

• Acts as a phase‑transfer medium for reactions involving poorly soluble organic substrates.
• Enhances catalytic turnover in systems requiring strong solvation of aromatic intermediates.
• Useful in immobilizing homogeneous catalysts for recycling and reuse.

Spectroscopy and Analytical Chemistry

• Provides a non‑volatile, thermally stable medium for NMR, UV–Vis, and IR studies of aromatic and organometallic species.
• Stabilizes reactive intermediates through π‑cation interactions, enabling mechanistic investigations.

Thermal and Chemical Stability Applications

• Suitable for high‑temperature reaction environments due to the PF₆⁻ anion’s thermal robustness.
• Used in studies requiring low vapor pressure and minimal solvent loss.

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