86856

Tetrabutylammoniumhydrogendifluorid -Lösung

technical, ~50% in methylene chloride (T)

• Synonym(e): TBABF, Tetrabutylammoniumbifluorid, Tetrabutylammoniumdifluorid
• Lineare Formel: (CH₃CH₂CH₂CH₂)₄N(HF₂)
• CAS-Nummer: 23868-34-0
• Molekulargewicht: 281.47
• Beilstein: 4729304
• MDL-Nummer: MFCD00077877
• UNSPSC-Code: 12352101
• PubChem Substanz-ID: 57653199
• NACRES: NA.22

Eigenschaften

• Qualität: technical
• Form: liquid
• Konzentration: ~50% in methylene chloride (T)
• Verunreinigungen: ~5% tetrabutylammonium chloride
• Brechungsindex: n20/D 1.442
• Lagertemp.: 2-8°C
• SMILES String: [F-].F[H].CCCC[N+](CCCC)(CCCC)CCCC
• InChI: 1S/C16H36N.2FH/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;;/h5-16H2,1-4H3;2*1H/q+1;;/p-1
• InChIKey: ZHBDKVWQJKYIFF-UHFFFAOYSA-M

Beschreibung

Anwendung

• Used as an etchant for silica films

Reactant for:

• Nucleophilic fluorination
• Ring-opening fluorination reaction
• Substitution reactions

Tetrabutylammonium hydrogen difluoride (TBABF) can be used as a reagent:

• For the conversion of aromatic boronic acids and esters into corresponding tetrabutylammonium trifluoroborate salts. These salts are utilized as surrogates of boronic acids in Suzuki-Miyaura cross-coupling reactions.
• In the nucleophilic fluorination of organic halides, tosylates, and triflates.
• For the regioselective synthesis of fluorohydrins by ring-opening of terminal epoxides.

Sicherheitshinweise

• Piktogramme: GHS08,GHS05,GHS07
• Signalwort: Danger
• H-Sätze: H314,H336,H351
• P-Sätze: P202 - P261 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Carc. 2 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• Zielorgane: Central nervous system
• Lagerklassenschlüssel: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter