901741

Bis(triphenyl-λ5-phosphanylidene)ammonium hydrogendifluoride

• Sinónimos: Bifluoride salt SuFEx catalyst, PNP⁺[FHF]^-, Triphenyl((triphenyl-phosphaneylidene)amino)phosphonium fluoride hydrofluoride, [Ph3P=N-PPh₃]⁺[HF2]^-
• Fórmula empírica (notación de Hill): C₃₆H₃₁F₂NP₂
• Número de CAS: 2055837-32-4
• Peso molecular: 577.58
• UNSPSC Code: 12352101

Propiedades

• assay: ≥95%
• form: solid
• reaction suitability: reagent type: catalyst
• greener alternative product characteristics: Catalysis; Learn more about the Principles of Green Chemistry.
• greener alternative category: Aligned,
• storage temp.: 2-8°C

Descripción

General description

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Application

Bifluoride salt reported by K. Barry Sharpless and colleagues as a catalyst for sulfur(VI) fluoride exchange (SuFEx)-based AA-BB polycondensation reactions to prepare polysulfonates with diverse structures, narrow polydispersity, and excellent thermal and hydrolytic stability. Bisalkylsulfonyl fluorides, the AA monomers, were prepared from ethenesulfonyl fluoride (746959) and amines/anilines while bisphenol bis(t-butyldimethylsilyl) ethers, the BB monomers, were synthesized using tert-butyldimethylsilyl chloride (190500) and bisphenols. Varying the amines, anilines, and bisphenols results in assorted polymeric backbones, including those bearing orthogonal side chains for modification post-polymerization (e.g. by CuAAC). Reaction is amenable to scale up.

Other Notes

1.SuFEx-Based Polysulfonate Formation from Ethenesulfonyl Fluoride–Amine Adducts

2.Bifluoride-catalysed sulfur(vi) fluoride exchange reaction for the synthesis of polysulfates and polysulfonates

Información de seguridad

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_c: Not applicable