XtalFluor-E
Synonym(s):(Diethylamino)difluorosulfonium tetrafluoroborate;N-(Difluoro-λ4-sulfanylidene)-N-ethyl-ethanaminium tetrafluoroborate;N,N-Diethyl-S,S-difluorosulfiliminium tetrafluoroborate;N,N-Diethylamino-S,S-difluorosulfinium tetrafluoroborate;DAST difluorosulfinium salt
- CAS NO.:63517-29-3
- Empirical Formula: C4H10BF6NS
- Molecular Weight: 228.9953192
- MDL number: MFCD15144877
- EINECS: 687-130-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:21:12
What is XtalFluor-E?
Description
XtalFluor-E, [Et2NSF2]BF4, is best known as a useful, versatile and inexpensive commercially available reagent for the deoxyfluorination of carbonyl compounds and alcohols. Although XtalFluor-E is commonly used in combination with an exogenous fluoride source as a deoxofluorinating reagent, it has also been widely employed in other chemical transformations such as dehydration, cyclodehydration, ring expansion, formylation, and proto-functionalization, etc.
The Uses of XtalFluor-E
XtalFluor-E can be used as convenient crystalline highly chemoselective deoxofluorination reagent with a broad substrate scopeDeoxofluorination reagent with a better safety profile.
What are the applications of Application
Convenient crystalline highly chemoselective deoxofluorination reagent with a broad substrate scope
Deoxofluorination reagent with a better safety profile, that doesn′t generate corrosive HF which makes it suitable for use in standard borosilicate vessels, and does not react violently with water
Reactant for:
Preparation of fluorodisaccharides
Triisopropylsilanethiol was recently reported by MacMillian and coworkers to be used as an organocatalyst, in tandem with Ir(III) specifically Aldrich product 688096, in photoredox catalysis. This approach directly couples a cyano-containing arene with an allylic sp3 C-H bond.
References
XtalFluor-E: A useful and versatile reagent in organic transformations
(DOI): 10.1016/j.jfluchem.2019.06.006
XtalFluorE effects the C3H sulfenylation of indoles to form di indole sulfides
(DOI): 10.1002/ejoc.202101394
Properties of XtalFluor-E
| Melting point: | 84-87℃ |
| storage temp. | -20°C |
Safety information for XtalFluor-E
| Signal word | Danger |
| Pictogram(s) |
![]() Corrosion Corrosives GHS05 ![]() Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for XtalFluor-E
| InChIKey | YLNKFQWRRIXZPJ-UHFFFAOYSA-N |
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