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328146

Sigma-Aldrich

Manganese(II) chloride

beads, 98%

Synonym(s):

Manganese dichloride, Sacchite

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About This Item

Linear Formula:
MnCl2
CAS Number:
Molecular Weight:
125.84
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

form

beads

reaction suitability

core: manganese
reagent type: catalyst

mp

652 °C (lit.)

density

2.98 g/mL at 25 °C (lit.)

SMILES string

Cl[Mn]Cl

InChI

1S/2ClH.Mn/h2*1H;/q;;+2/p-2

InChI key

GLFNIEUTAYBVOC-UHFFFAOYSA-L

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Application

A novel high-spin hexanuclear Mn(III) cluster, [NaMn6(OMe)12(dbm)6]+, was synthesized via MnCl2 oxidation with simultaneous NaOMe promoted aggregation. This cluster has an unprecedented cyclic structure and 24 unpaired electrons in its ground state. Also used in the formation of an active Mn(0) speciesuseful for radical cyclization reactions.
Starting material for preparation of organomanganese chloride reagents; catalyst for reduction of vinyl and aryl halides, stereoselective coupling of vinyl iodides, and alkylation of enol triflates; also used for Mn-Cu-catalyzed conjugate addition of RMgX to enones and for Mn-catalyzed acylation of RMgX by acyl chlorides; in combination with NaBH4 is diastereoselective reducing agent; starting material for the preparation of Mn enolates regio- and stereo-selectively.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - STOT RE 2

Target Organs

Brain

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Abbati, G.L. et al.
Inorganic Chemistry, 37, 1430-1430 (1998)
Tang, J. et al.
Tetrahedron, 55, 1893-1893 (1999)
Geoffrey J Topping et al.
Medical physics, 40(4), 042502-042502 (2013-04-06)
Manganese(II) is employed as a contrast agent with magnetic resonance imaging (MRI) for study of neuronal activation in rats and mice. However, at the concentrations required for MRI, Mn may induce pharmacological or toxic effects. Positron emission tomography (PET) imaging
Marta Sidoryk-Wegrzynowicz et al.
Journal of neurochemistry, 122(4), 856-867 (2012-06-20)
Manganese (Mn) has been implicated in the impairment of the glutamate-glutamine cycling (GGC) by deregulation of Glu and glutamine (Gln) turnover in astrocytes. Here, we have examined possible mechanisms involved in the Mn(II)-mediated disruption of Glu turnover, including those related
Jerome A Roth et al.
Toxicology in vitro : an international journal published in association with BIBRA, 26(7), 1143-1149 (2012-07-31)
Mutations in the parkin gene are linked to development of juvenile onset of Parkinson's disease and recent studies have reported that parkin can protect against increased oxidative stress and mitochondrial dysfunction caused by a variety of oxidative and toxic insults.

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