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658685

Sigma-Aldrich

Os EnCat® 40

extent of labeling: 0.3 mmol/g Os loading

Sinonimo/i:

Osmium oxide, Osmium tetroxide, microencapsulated

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About This Item

Formula empirica (notazione di Hill):
OsO4
Numero CAS:
20816-12-0
Peso molecolare:
254.23
Numero MDL:
MFCD00011150
Codice UNSPSC:
12161600
ID PubChem:
24884370
NACRES:
NA.22

Livello qualitativo

100

Impiego in reazioni chimiche

core: osmium
reagent type: catalyst
reagent type: oxidant

Grado di funzionalizzazione

0.3 mmol/g Os loading

Stringa SMILE

O=[Os](=O)(=O)=O

InChI

1S/4O.Os
VUVGYHUDAICLFK-UHFFFAOYSA-N

Categorie correlate

Descrizione generale

The product is osmium tetroxide encapsulated within a porous cross-linked polyurea matrix.

Applicazioni

Os EnCat® 40 in the presence of a secondary oxidant can transform alkyl and aryl olefins to their corresponding diols via dihydroxylation reaction.

Caratteristiche e vantaggi

Encapsulated OsO4 catalyst offers safety and handling advantages over conventional OsO4.

Note legali

Os EnCat® technology.
EnCat is a registered trademark of Reaxa Ltd.

Pittogrammi

Skull and crossbonesCorrosion
GHS06,GHS05

Avvertenze

Danger

Indicazioni di pericolo

H301 + H331,H310,H314

Classi di pericolo

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

Rischi supp

EUH019

Codice della classe di stoccaggio

4.1B - Flammable solid hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

Lot/Batch Number
14826BH
14626BH
14726BH
02124CE
10920TD

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Steven V Ley et al.
Organic letters, 5(2), 185-187 (2003-01-17)
[reaction: see text] Osmium tetroxide has been microencapsulated in a polyurea matrix using an in situ interfacial polymerization approach. These microcapsules have been effectively used as recoverable and reusable catalysts in the dihydroxylation of olefins
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The Journal of general virology, 92(Pt 11), 2485-2493 (2011-07-29)
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OsO4·streptavidin: a tunable hybrid catalyst for the enantioselective cis-dihydroxylation of olefins.
Valentin Köhler et al.
Angewandte Chemie (International ed. in English), 50(46), 10863-10866 (2011-09-29)
Carsten Købler et al.
Analytical and bioanalytical chemistry, 406(16), 3863-3873 (2014-01-23)
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Articoli

EnCat™ & Other Catalysts

Sigma-Aldrich offers EnCat and a variety of transition metal-based encapsulated catalysts for applications in areas such as Suzuki, Stille, and Heck couplings, carbonylations, hydrogenation, hydrogenolysis, and dihydroxylation.

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