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451398

Sigma-Aldrich

Zinc bromide

AnhydroBeads, −10 mesh, 99.999% trace metals basis

Synonym(s):

Zinc dibromide

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About This Item

Linear Formula:
ZnBr2
CAS Number:
Molecular Weight:
225.20
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38150410
PubChem Substance ID:
NACRES:
NA.23

product line

AnhydroBeads

Assay

99.999% trace metals basis

reaction suitability

reagent type: catalyst
core: zinc

impurities

≤15.0 ppm Trace Metal Analysis

particle size

−10 mesh

bp

~670 °C/1 atm (lit.)

mp

394 °C (lit.)

solubility

diethyl ether: slightly soluble(lit.)
ethanol: very soluble(lit.)

SMILES string

Br[Zn]Br

InChI

1S/2BrH.Zn/h2*1H;/q;;+2/p-2

InChI key

VNDYJBBGRKZCSX-UHFFFAOYSA-L

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Application

Optimal catalyst for stereospecific and regioselective reaction of silacyclopropanes with carbonyl compounds.

Legal Information

AnhydroBeads is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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S Takeda et al.
Chemical & pharmaceutical bulletin, 48(7), 1097-1100 (2000-08-03)
The alpha,alpha-gem-difluorination of 2',4'-difluoro-alpha-(methylthio)acetophenone (1a) with N-fluoropyridinium salts gave 2',4',alpha,alpha-tetrafluoro-alpha-(methylthio)acetophenone (3a). This reaction was accelerated by the addition of zinc chloride, zinc bromide or anhydrous iron(III) chloride, and higher yields than the reaction without additives were obtained. The gem-difluorination reaction
Erik Lundberg et al.
Journal of structural biology, 155(3), 445-457 (2006-05-26)
The transthyretin-related protein (TRP) family comprises proteins predicted to be structurally related to the homotetrameric transport protein transthyretin (TTR). The function of TRPs is not yet fully established, but recent data suggest that they are involved in purine catabolism. We
Ruixue Deng et al.
Organic letters, 9(25), 5207-5210 (2007-11-10)
A number of indenes have been prepared in good yields by treating o-bromobenzyl zinc bromide 1 with various terminal and internal alkynes in the presence of a nickel catalyst. The nickel-catalyzed carboannulation reaction was successfully extended to the synthesis of
Yejian Han et al.
Organic letters, 13(4), 588-591 (2011-01-12)
An efficient and versatile ZnBr(2)-catalyzed Diels-Alder/carbocyclization cascade reaction has been developed for construction of highly functionalized cis-hydrindanes (70-96% yields with high diastereoselectivity), and it has been successfully utilized in the synthesis of the aglycon of dendronobiloside A.
Yang Yu et al.
Preparative biochemistry & biotechnology, 37(4), 381-387 (2007-09-13)
Zinc bromide catalyzes the three component condensation reaction of an aldehyde, urea, and beta-ketoester or beta-diketone under solvent-free conditions to afford the corresponding dihydropyrimidinones (DHPMs) with moderate to high yields in short reaction time. The present method is very effective

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