595721

(R)-(+)-3,3′-Dibrom-1,1′-bi-2-naphthol

97%

• Synonym(e): (R)-3,3′-Dibromo-1,1′-bi-2-naphthol, (R)-3,3′-Dibromo-[1,1′-Binaphthalene]-2,2′-diol, (R)-Dibromo-1,1′-Bi-2,2′-naphthol, (R)-Dibromo-1,1′-Binaphthalene-2,2′-diol, (R)-Dibromo-1,1-Binaphthol, (R)-Dibromo-BINOL, (R)-Dibromo-bi-2-naphthol
• Empirische Formel (Hill-System): C₂₀H₁₂Br₂O₂
• CAS-Nummer: 111795-43-8
• Molekulargewicht: 444.12
• MDL-Nummer: MFCD03093629
• UNSPSC-Code: 12352005
• PubChem Substanz-ID: 24881599
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 100
• Assay: 97%
• Form: solid
• mp (Schmelzpunkt): 256-260 °C
• Funktionelle Gruppe: bromo
• InChI: 1S/C20H12Br2O2/c21-15-9-11-5-1-3-7-13(11)17(19(15)23)18-14-8-4-2-6-12(14)10-16(22)20(18)24/h1-10,23-24H
• InChIKey: BRTBEAXHUYEXSY-UHFFFAOYSA-N

Beschreibung

Anwendung

(R)-(+)-3,3′-Dibromo-1,1′-bi-2-naphthol reacts with zirconium(IV) tert-butoxide to form a chiral zirconium complex, which can efficiently catalyze:

• anti-selective catalytic asymmetric aldol reactions of silyl enol ethers with aldehydes
• asymmetric intramolecular [3+2] cycloaddition of hydrazone/olefins

Sicherheitshinweise

• Piktogramme: GHS09
• Signalwort: Warning
• H-Sätze: H410
• P-Sätze: P273 - P501
• Gefahreneinstufungen: Aquatic Acute 1 - Aquatic Chronic 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)