449539

(4S,5S)-Chloro-cyclopentadienyl-[2,2-dimethyl-1,3-dioxolan-4,5-bis-(diphenylmethoxy)]-titan

97%

• Synonym(e): (S,S)-Duthaler-Hafner-Reagens, [(4S,5S)-2,2-Dimethyl-1,3-dioxolan-4,5-bis-(diphenylmethoxy)]-cyclopentadienyl-chlor-titan
• Empirische Formel (Hill-System): C₃₆H₃₃ClO₄Ti
• CAS-Nummer: 140462-73-3
• Molekulargewicht: 612.96
• UNSPSC-Code: 12352000
• PubChem Substanz-ID: 24868490

Eigenschaften

• Assay: 97%
• Optische Aktivität: [α]20/D +246°, c = 1 in chloroform
• mp (Schmelzpunkt): 209-213 °C (lit.)
• SMILES String: Cl[Ti].[CH]1[CH][CH][CH][CH]1.CC2(C)O[C@@H]([C@H](O2)C(O)(c3ccccc3)c4ccccc4)C(O)(c5ccccc5)c6ccccc6

Beschreibung

Anwendung

A novel highly enantioselective allyl-transfer reagent. Excellent regio-, diastereo-, and enantioselectivities (usually >95% ee, >95% de) are obtained for the addition of allyl nucleophiles to aldehydes. Although this reagent is used in stoichiometric amounts, the chiral ligand and monocyclopentadienyltitanium trichloride can be easily recovered.

Sicherheitshinweise

• Piktogramme: GHS05
• Signalwort: Danger
• H-Sätze: H314
• P-Sätze: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Gefahreneinstufungen: Skin Corr. 1B
• Lagerklassenschlüssel: 8A - Combustible corrosive hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges