Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

18531-94-7 - (R)-(+)-1,1'-Bi(2-naphthol), 99% - (R)-(+)-1,1'-Binaphthalene-2,2'-diol - (R)-(+)-BINOL - L08305 - Alfa Aesar

L08305 (R)-(+)-1,1'-Bi(2-naphthol), 99%

CAS-Nummer
18531-94-7
Synonyme
(R)-(+)-1,1'-Binaphthalene-2,2'-diol
(R)-(+)-BINOL

Größe Preis ($) Menge Verfügbarkeit
1g 32,96
5g 93,32
25g 294,30
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

(R)-(+)-1,1'-Bi(2-naphthol), 99%

MDL
MFCD00004068

Chemische Eigenschaften

Formel
C20H14O2
Molmasse
286.33
Schmelzpunkt
206-211°
Dichte
1.301
Optical Rotation
+34.5 (c=1 in THF)
Löslichkeit
Insoluble in water. Solubility in THF within almost transparency). Soluble in dioxane 50 mg/mL.

Anwendungen

It is used in biosynthetic preparation for enantioselective oxidation of naphthols to binaphthyldiols with horseradish peroxidase catalyst. A chiral auxiliary used in the catalytic asymmetric oxidation of sulfides to sulfoxides. Chiral lanthanide triflates formed from binaphthol serve as catalysts for asymmetric Diels-Alder reactions. Derivatives of binaphthol have recently found use in asymmetric Claisen rearrangements and asymmetric epoxidations.5 The lithium aluminum hydride derivative of these diols (BINAP-H) has been used extensively for the reduction of ketones. Chiral binapthol imminium salt precursor. Salts were used for an asymmetric epoxidation of olefins.

Bemerkungen

Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

Literaturverweise

Lilia Kurz, et al. Stereospecific functionalization of (R)-(-)-1,1?-bi-2-naphthol triflate.Tetrahedron Lett.,1990,31(44), 6321-6324.

Taisuke Hamada, et al. A novel photocatalytic asymmetric synthesis of (R)-(+)-1,1?-bi-2-naphthol derivatives by oxidative coupling of 3-substituted-2-naphthol with Δ-[Ru(menbpy)3]2+[menbpy = 4,4?-di(1R,2S,5R)-(-)-menthoxycarbonyl-2,2?-bipyridine], which posseses molecular helicity.J. Chem. Soc., Chem. Commun.,1993,11909-911.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H301-H315-H319-H335

Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P280h-P305+P351+P338-P309-P310

Wear protective gloves/clothing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or if you feel unwell: Immediately call a POISON CENTER or doctor/physician.

Weitere Referenzen

Merck
14,1226
Beilstein
3616837
Gefahrenklasse
6.1
Verpackungsgruppe
III
Harmonized Tariff Code
2907.29
TSCA
No
RTECS
DU3106100

Empfohlen

  • A10280

    Diisopropylamine, 99+%
  • A10459

    Quinine, anhydrous, 99% (total base), may cont. up to 5% dihydroquinine
  • A10855

    Nitroethane, 99%
  • A12646

    Triethylamine, 99%
  • 44436

    Phosphorus(III) chloride, 98% min

Kürzlich angesehen

Chemikalien

Life science

Metalle und Stoffe

Katalysatoren

Forschungs- und Laborbedarf