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360074

Sigma-Aldrich

Magnesium bromide

98%

Synonym(s):

Ddibromomagnesium, Magnesium bromide salt, Magnesium dibromide

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About This Item

Linear Formula:
MgBr2
CAS Number:
7789-48-2
Molecular Weight:
184.11
EC Number:
232-170-9
MDL number:
MFCD00011105
UNSPSC Code:
12352302
PubChem Substance ID:
24862142
NACRES:
NA.22
Assay:
98%
form:
powder

Quality Level

200

Assay

98%

form

powder

mp

711 °C (lit.)

density

3.72 g/mL at 25 °C (lit.)

SMILES string

Br[Mg]Br

InChI

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

InChI key

OTCKOJUMXQWKQG-UHFFFAOYSA-L

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Application

Magnesium bromide (MgBr2) can be used as a catalyst in:
  • Acetylation and benzoylation of alcohols (primary and secondary) with acid anhydrides.
  • In the synthesis of dihydropyrimidinones , trifluoromethylnaphthalenes , substituted 1,2,3,4 tetrahydropyrimidin-2-ones .
  • In the preparation of Aldol derivatives by hydrogenation of Baylis-Hillman olefins.
  • Deprotection of SEM (2-(Trimethylsilyl)ethoxymethyl) ether group.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN6160
MKCM2977
MKCL7391
MKCH4592
MKCH6966

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Magnesium bromide mediated highly diastereoselective heterogeneous hydrogenation of olefins
Bouzide, Abderrahim
Organic Letters, 4(8), 1347-1350 (2002)
Synthesis of trifluoromethylnaphthalenes
Mellor JM, et al.
Tetrahedron, 56(51), 10067-10074 (2000)
A facile and efficient one-pot synthesis of dihydropyrimidinones catalyzed by magnesium bromide under solvent-free conditions
Salehi H and Guo Q-X
Synthetic Communications, 34(1), 171-179 (2004)
Efficient Magnesium Bromide-Catalyzed One-pot Synthesis of Substituted 1, 2, 3, 4-Tetrahydropyrimidin-2-ones Under Solvent-free Conditions
Salehi H and Guo Q-X
Chin. J. Chem., 23(1), 91-97 (2005)
Novel deprotection of SEM ethers: a very mild and selective method using magnesium bromide
Vakalopoulos A and Hoffmann HMR
Organic Letters, 2(10), 1447-1450 (2000)
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