Phase transfer catalysts (PTCs) are quaternary ammonium and phosphonium salts essential for many industrial applications. They drive the production of additives, monomers, agrochemicals, dyes, pharmaceuticals, explosives, petrochemicals, fragrances, flavors, resins, rubber, surfactants, paints, coatings, and zeolite templates.

CatOnium PTCs also support polymer modifications, environmental treatments, and impurity removal from waste and product streams. They enable key reactions like aldol condensation, dehydrohalogenation, N-, C-, and S-alkylation, borohydride reduction, etherification, oxidation, epoxidation, carbene reactions, esterification, transesterification, reduction, carbonylation, hydrohalogenation, transition metal co-catalysis, chloromethylation, hydrogenation, and the Wittig reaction.

Using CatOnium PTCs improves scalability, cuts costs, and eliminates hazardous reagents like metal alkoxides. They operate under mild conditions, reduce waste, and boost product yield and purity. Faster reaction times, greater selectivity, and lower energy use make processes more efficient.

The most common CatOnium PTCs, quaternary ammonium salts with alkyl or alkyl/aryl groups, remain stable up to 100°C. For higher temperatures, phosphonium PTCs perform reliably between 120-150°C and can handle up to 200°C.

Vesta Chemicals delivers high-quality CatOnium PTCs, ensuring reliable performance while prioritizing customer satisfaction and sustainability.

CatOnium BeTPC CAS Number: 1100-88-5
Benzyltriphenylphosphonium Chloride
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CatOnium BTPB CAS Number: 1779-51-7
Butyltriphenylphosphonium Bromide
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CatOnium BTPC CAS Number: 13371-17-0
Butyltriphenylphosphonium Chloride
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CatOnium ETPAAC CAS Number: 35835-94-0
Ethyltriphenylphosphonium Acetate
CatOnium ETPB CAS Number: 1530-32-1
Ethyltriphenylphosphonium Bromide
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CatOnium ETPI CAS Number: 4736-60-1
Ethyltriphenylphosphonium Iodide
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CatOnium MTPB CAS Number: 1779-49-3
Methyltriphenylphosphonium Bromide
CatOnium TBAB CAS Number: 1643-19-2
Tetrabutylammonium Bromide
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CatOnium TPAB CAS Number: 1941-30-6
Tetrapropylammonium bromide
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CatOnium TPPBr CAS Number: 2751-90-8
Tetraphenylphosphonium Bromide
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