1-Butyl-2,3-dimethylimidazolium triflate, CAS: 765910-73-4

Key Applications:

1. Catalysis and Organic Synthesis

• Brønsted‑acidic reaction media for esterifications, acylations, alkylations, and dehydrations.
• Solvent–catalyst hybrid for Friedel–Crafts reactions, Diels–Alder cycloadditions, and electrophilic aromatic substitutions.
• Stabilizing medium for carbocationic and metal‑centered catalytic cycles, due to the triflate anion’s weak coordination.
• Recyclable reaction solvent, reducing solvent waste in multi‑step synthesis.

2. Electrochemistry and Energy Materials

• Electrolyte component in supercapacitors and electrochemical capacitors where high ionic conductivity and wide electrochemical windows are required.
• Solvent for redox‑active species in flow‑battery research.
• Medium for electrodeposition of metals or alloys where moisture‑sensitive or air‑sensitive conditions are needed.

3. Separation Science and Extraction

• Selective extraction of metal ions, especially where hydrophobic ionic liquids improve phase separation.
• Solvent for biomass fractionation, including lignin dissolution and carbohydrate processing.
• CO₂ and SO₂ capture studies, leveraging the imidazolium cation’s tunable interactions with acidic gases.

4. Materials Processing

• Template or structuring agent in polymer synthesis, block‑copolymer self‑assembly, and nanoparticle stabilization.
• Plasticizer or ionic additive in polymer electrolytes and ion‑conducting films.
• Medium for cellulose dissolution and regeneration, depending on the specific hydrogen‑bonding profile of the triflate system.

5. Spectroscopy and Physical Chemistry

• Non‑volatile matrix for studying solvation dynamics, ion pairing, and transport properties.
• Model system for benchmarking viscosity, conductivity, and thermal stability trends across substituted imidazolium ionic liquids.

6. Green Chemistry and Process Intensification

• Replacement for volatile organic solvents in reactions requiring high temperature or strong acidity.
• Recyclable reaction medium in continuous‑flow or biphasic catalytic systems.
• Platform for immobilizing homogeneous catalysts, improving catalyst lifetime and recovery.

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