Tetrabutylphosphonium acetate, CAS: 30345-49-4

Key Applications:

Catalysis & Organic Synthesis

• Serves as a non‑volatile reaction medium for base‑catalyzed transformations, including transesterification, condensation, and elimination reactions.
• Enhances rates and selectivity in organophosphonium‑mediated catalytic cycles due to its stable, bulky cation.
• Supports phase‑transfer catalysis in biphasic organic–aqueous systems.

Biomass & Biopolymer Processing

• Dissolves or swells lignocellulosic substrates, enabling fractionation, delignification, and pretreatment workflows.
• Facilitates homogeneous processing of cellulose and hemicellulose for derivatization or conversion to platform chemicals.
• Useful in mild deacetylation and deconstruction pathways where acetate anions promote selective bond cleavage.

Electrochemistry & Energy Materials

• Functions as a stable ionic medium for electrochemical studies requiring wide electrochemical windows.
• Supports ion transport in prototype electrolytes for supercapacitors and organic redox systems.
• Compatible with polymer–ionic liquid hybrid electrolytes due to its bulky, low‑coordinating phosphonium cation.

Polymer Science & Materials Engineering

• Acts as a plasticizer or processing aid for engineering polymers, improving flexibility and melt behavior.
• Enables ionically conductive polymer networks and gels for membranes, actuators, and soft‑matter devices.
• Serves as a solvent or co‑solvent for controlled polymerization systems requiring low volatility and tunable polarity.

Extraction, Separation & Solvent Systems

• Provides selective solvation for metal ions, organic acids, and hydrophobic molecules in liquid–liquid extraction.
• Useful in CO₂‑related separations where acetate anions enhance chemisorption or reversible binding.
• Supports non‑aqueous biphasic systems for purification and reactive separations.

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