692360

Natriumtetrakis[3,5-bis(trifluormethyl)phenyl]borat

• Synonym(e): NaBARF, Tetrakis-[3,5-bis-(trifluormethyl)-phenyl]-bornatrium
• Empirische Formel (Hill-System): C₃₂H₁₂BF₂₄Na
• CAS-Nummer: 79060-88-1
• Molekulargewicht: 886.20
• Beilstein: 5474788
• MDL-Nummer: MFCD00043323
• UNSPSC-Code: 12161600
• PubChem Substanz-ID: 329761488
• NACRES: NA.22

Eigenschaften

• Form: powder
• Qualitätsniveau: 100
• Eignung der Reaktion: core: sodium; reagent type: catalyst
• SMILES String: [Na+].FC(F)(F)c1cc(cc(c1)C(F)(F)F)[B-](c2cc(cc(c2)C(F)(F)F)C(F)(F)F)(c3cc(cc(c3)C(F)(F)F)C(F)(F)F)c4cc(cc(c4)C(F)(F)F)C(F)(F)F
• InChI: 1S/C32H12BF24.Na/c34-25(35,36)13-1-14(26(37,38)39)6-21(5-13)33(22-7-15(27(40,41)42)2-16(8-22)28(43,44)45,23-9-17(29(46,47)48)3-18(10-23)30(49,50)51)24-11-19(31(52,53)54)4-20(12-24)32(55,56)57;/h1-12H;/q-1;+1
• InChIKey: LTGMONZOZHXAHO-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, also known as NaBArF, is widely used as a catalyst in the cyclopolymerization of functionalized trienes. NaBArF also acts as a precursor to synthesize other tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB)-based reagents.Sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, also known as NaBAr′4, is a stable and highly soluble compound that has been used as a source of the [BArF] counterion in chemical synthesis. It has been found to be resistant to degradation by various oxidants and highly lipophilic. This compound has been used as a convenient reagent for the generation and stabilization of cationic electrophilic metal alkyl complexes. It has also been used in the living polymerization of ethylene, oligomerization of α-olefins, and olefin hydrogenation and hydrosilylation.

Anwendung

The TFPB anion can be used to catalyze:

• In-situ diazo-coupling and N- and C-nitrosations.
• Synthesis of oxirane from different carbonyl substrates and trimethylsulfonium chloride via phase-transfer catalysis.
• Synthesis of ion selective membranes⁹

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable