901762
Tris(dimethylamino)sulfonium bifluoride
Synonym(s):
(Me2N)3S+[FHF]–, Bifluoride salt SuFEx catalyst
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About This Item
Empirical Formula (Hill Notation):
C6H19F2N3S
CAS Number:
Molecular Weight:
203.30
UNSPSC Code:
12352101
Form:
powder or solid
form
powder or solid
reaction suitability
reagent type: catalyst
reaction type: Fluorinations
greener alternative product characteristics
Catalysis
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greener alternative category
, Aligned
storage temp.
2-8°C
General description
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.
Application
Bifluoride salt reported by K. Barry Sharpless and colleagues as a powerful catalyst for the sulfur(VI) fluoride exchange (SuFEx) reaction between aryl silyl ethers and aryl fluorosulfates or alkyl sulfonyl fluorides. Superior to organosuperbases DBU and BEMP, tris(dimethylamino)sulfonium bifluoride enables low catalyst loading (0.05 mol%) for preparation of polysulfates and polysulfonates with high molecular weight and narrow polydispersity. Reaction is amenable to scale up.
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Hua Wang et al.
Angewandte Chemie (International ed. in English), 56(37), 11203-11208 (2017-08-10)
The SuFEx-based polycondensation between bisalkylsulfonyl fluorides (AA monomers) and bisphenol bis(t-butyldimethylsilyl) ethers (BB monomers) using [Ph
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