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209104

Sigma-Aldrich

Potassium osmate(VI) dihydrate

Synonym(s):

Dipotassium tetrahydroxodioxoosmate, Potassium dioxidodioxoosmium dihydrate, Potassium osmium oxide

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100 MG
$58.40
500 MG
$200.00
2.5 G
$660.00

About This Item

Linear Formula:
K2OsO4·2H2O
CAS Number:
10022-66-9
Molecular Weight:
368.45
EC Number:
243-247-1
MDL number:
MFCD00149919
UNSPSC Code:
12352302
PubChem Substance ID:
24852235
NACRES:
NA.23
form:
powder

$58.40

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form

powder

Quality Level

200

reaction suitability

reagent type: oxidant

SMILES string

O.O.[K+].[K+].[O-][Os]([O-])(=O)=O

InChI

1S/2K.2H2O.4O.Os/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;

InChI key

DGODWNOPHMXOTR-UHFFFAOYSA-N

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General description

Potassium osmate(VI) dihydrate is a hydroscopic transition metal compound soluble in water and methanol, widely used as a reagent/catalyst to synthesize Os compounds.

Application

Potassium osmate(VI) dihydrate can be used:
  • As a reagent for the stereoselective synthesis of 2,3,4-unprotected β-N-Glycopyranosides via palladium-catalyzed Tsuji-Trost amination.
  • As a catalyst for asymmetric synthesis of carboranylated diols bearing two adjacent stereocenters.
  • To prepare Osmium complexes for voltammetric analysis of polysaccharides.

pictograms

Skull and crossbones
GHS06

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW6506
MKCT9851
MKCS8475
MKCR2247
MKCP2362

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Tetrahedron Letters, 47, 3797-3797 (2006)
Timothy J Donohoe et al.
Journal of the American Chemical Society, 128(8), 2514-2515 (2006-02-24)
The use of N-sulfonyloxy carbamates as reoxidants for the tethered aminohydroxylation (TA) reaction is reported. These new conditions obviate the requirement for lithium hydroxide and tBuOCl in the oxidation mixture. In addition to providing aminohydroxylation products in good yields, the

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