754242

Tetrahydroxydiboron

95%

• Synonym(e): BBA, Bis-Boric acid, Diboronic acid
• Empirische Formel (Hill-System): B₂H₄O₄
• CAS-Nummer: 13675-18-8
• Molekulargewicht: 89.65
• MDL-Nummer: MFCD05663888
• UNSPSC-Code: 12352103
• PubChem Substanz-ID: 329766409
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Assay: 95%
• Form: solid
• mp (Schmelzpunkt): >385 °C
• SMILES String: OB(O)B(O)O
• InChI: 1S/B2H4O4/c3-1(4)2(5)6/h3-6H
• InChIKey: SKOWZLGOFVSKLB-UHFFFAOYSA-N

Beschreibung

Anwendung

Tetrahydroxydiboron (BBA) is an efficient borylating agent that can be used to borylate a wide variety of aryl and heteroaryl substrates with low Pd- and Ni-catalyst loads.

Other reactions employing BBA as a reagent:

• Palladium-catalyzed boronation of vinyl cyclopropane, vinyl aziridine, and allyl acetate substrates.
• To facilitate catalytic transfer hydrogenations of simple alkenes and alkynes.
• Selective reducing agent for in situ N-oxide reduction of pyridine-N-oxides.
• As a substitute to bis(pinacolato) diboron for Miyaura borylation.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H302 + H332,H315,H319,H335
• P-Sätze: P261 - P264 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable