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Merck
CN

02128

Zinc bromide

puriss., anhydrous, ≥98%

Synonym(s):

Zinc dibromide

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About This Item

Linear Formula:
ZnBr2
CAS Number:
7699-45-8
Molecular Weight:
225.20
PubChem Substance ID:
329747390
eCl@ss:
38150410
UNSPSC Code:
12352302
EC Number:
231-718-4
MDL number:
MFCD00011294

Key Documents

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InChI key

VNDYJBBGRKZCSX-UHFFFAOYSA-L

InChI

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

SMILES string

Br[Zn]Br

grade

puriss.

assay

≥98%

reaction suitability

reagent type: catalyst
core: zinc

mp

394 °C (lit.)

anion traces

sulfate (SO42-): ≤100 mg/kg

cation traces

Ba: ≤10 mg/kg, Ca: ≤100 mg/kg, Fe: ≤10 mg/kg, K: ≤100 mg/kg, Mg: ≤100 mg/kg, Na: ≤100 mg/kg, Pb: ≤50 mg/kg

Quality Level

100

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General description

Zinc bromide is an inorganic salt. Zinc bromide supported on hydroxyapatite (Zn-HAP) promotes the synthesis of 3-substituted indoles.

Application

Zinc bromide (ZnBr2) may be used for the following studies:
  • Removal of dimethoxytrityl ethers from deoxynucleosides.
  • Removal of N-acyl protecting group in nucleoside derivatives.
  • Alkylation of O-silylated dienolates of unsaturated ketones and esters.
  • As catalyst in the synthesis of α-perfluoroalkylated homoallylic alcohols.

signalword

Danger

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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The use of zinc bromide for removal of dimethoxytrityl ethers from deoxynucleosides.
Matteucci MD and Caruthers MH.
Tetrahedron Letters, 31(34), 3243-3246 (1984)
Zinc bromide promoted allylation of aluminum acetals derived from perfluoro carboxylic acid esters and diisobutylaluminum hydride. New convenient access to a-perfluoroalkylated homoallyl alcohols.
Ishihara T, et al.
Tetrahedron Letters, 34(36), 5777-5777 (1993)
γ-Alkylation of unsaturated ketones and esters: zinc bromide-catalysed alkylation of O-silylated dienolates.
Fleming I, et al.
Tetrahedron Letters, 20(34), 3209-3212 (1979)
Zinc bromide supported on hydroxyapatite as a new and efficient solid catalyst for Michael addition of indoles to electron-deficient olefins.
Tahir R, et al.
J. Mol. Catal. A: Chem., 246(1), 39-42 (2006)
Teiichi Murakami et al.
Carbohydrate research, 343(8), 1297-1308 (2008-04-15)
Reactions of O-benzoylated glucopyranosyl halide (I, Br), isolated or generated in situ from per-benzoylated glucose (8a) and trimethylsilyl halide, with various alcohols were efficiently promoted by zinc halide (Cl, Br) or N-bromosuccinimide with a catalytic ZnI(2) to give the corresponding
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