1-Butyl-1-methylpyrrolidinium methylcarbonate, CAS: 1223496-96-5

Key Applications:

Electrochemistry & Energy Storage

• Employed as a low‑volatility electrolyte component in lithium‑ion, sodium‑ion, and emerging multivalent battery systems.
• Supports high‑conductivity electrolyte blends when paired with carbonate‑based solvents or ionic‑liquid co‑salts.
• Used in electrode passivation studies, where the methylcarbonate anion participates in controlled interfacial film formation.
• Suitable for supercapacitor electrolyte formulations requiring wide electrochemical windows and reduced flammability.

CO₂ Chemistry & Carbonate‑Mediated Transformations

• Utilized in CO₂ capture and activation research, leveraging the methylcarbonate anion’s reactivity and reversible CO₂ binding behavior.
• Serves as a carbonate donor in organic synthesis, enabling mild carboxylation, transcarbonation, and nucleophile‑assisted carbonate exchange reactions.
• Applied in mechanistic studies of carbonate‑based ionic liquid equilibria and solvent–solute interactions.

Catalysis & Green Chemistry

• Functions as a non‑volatile reaction medium for base‑catalyzed and organocatalytic transformations.
• Supports phase‑transfer catalysis in systems requiring enhanced solubility of polar intermediates.
• Used in biocatalytic reaction optimization, where ionic‑liquid co‑solvents improve enzyme stability and substrate accessibility.

Polymer & Materials Processing

• Acts as a processing aid and solvation medium for cellulose, lignin, and other biopolymers in carbonate‑rich solvent systems.
• Enables controlled polymer functionalization, particularly where carbonate groups participate in chain‑end modification or crosslinking.
• Applied in thin‑film fabrication and ionic‑liquid‑modified coatings to tune conductivity, viscosity, and surface interactions.

Analytical & Mechanistic Studies

• Used as a reference ionic liquid for studying carbonate anion stability, ion pairing, and solvation dynamics.
• Supports spectroscopic and electroanalytical method development, including NMR, FTIR, and cyclic voltammetry studies of carbonate‑containing systems.
• Serves as a model system for evaluating ionic‑liquid/solvent miscibility and methanol‑dependent equilibria.

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