336556

Bis(triphenylsilyl)chromat

96%

• Synonym(e): Bis(triphenylsilyl) ester chromic acid
• Lineare Formel: [(C₆H₅)₃SiO]₂CrO₂
• CAS-Nummer: 1624-02-8
• Molekulargewicht: 634.79
• EG-Nummer: 216-612-8
• MDL-Nummer: MFCD01736354
• UNSPSC-Code: 12352002
• PubChem Substanz-ID: 24860393
• NACRES: NA.22

Eigenschaften

• Assay: 96%
• Eignung der Reaktion: reagent type: oxidant
• mp (Schmelzpunkt): 159 °C (dec.) (lit.)
• SMILES String: O=[Cr](=O)(O[Si](c1ccccc1)(c2ccccc2)c3ccccc3)O[Si](c4ccccc4)(c5ccccc5)c6ccccc6
• InChI: 1S/2C18H15OSi.Cr.2O/c2*19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18;;;/h2*1-15H;;;/q2*-1;+2;;
• InChIKey: AQLZCGLPNYEIDH-UHFFFAOYSA-N

Beschreibung

Anwendung

Bis(triphenylsilyl) chromate [(Ph₃SiO)₂] can be used as a catalyst:

• For ethylene polymerization.
• For the conversion of secondary benzylic and allylic trimethylsilyl ethers to ketones by oxidation reaction using tert-butyl hydroperoxide.

It can also be used to prepare supported catalysts with silica gel or montmorillonite K-10. These catalysts can be used in the oxidation of alcohols to corresponding carbonyl compounds.

Reactant for the XPS and XRD characterization of chromium-silica catalysts

Silyl chromate catalyst for

• Olefin polymerization and ethylene polymerization
• Benzylic oxidations used as a phase transfer catalyst

Sicherheitshinweise

• Piktogramme: GHS06,GHS08,GHS09
• Signalwort: Danger
• H-Sätze: H311,H317,H350,H410
• P-Sätze: P202 - P261 - P273 - P280 - P302 + P352 + P312 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 3 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Skin Sens. 1
• Lagerklassenschlüssel: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges