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Merck
CN

334030

Cobalt(II) bromide hydrate

solid

Synonym(s):

Cobaltous bromide hydrate

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About This Item

Linear Formula:
CoBr2 · xH2O
CAS Number:
85017-77-2
Molecular Weight:
218.74 (anhydrous basis)
NACRES:
NA.22
PubChem Substance ID:
24860213
UNSPSC Code:
12161600
EC Number:
232-166-7
MDL number:
MFCD00150208

Key Documents

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Product Name

Cobalt(II) bromide hydrate,

InChI

1S/2BrH.Co.H2O/h2*1H;;1H2/q;;+2;/p-2

InChI key

MOTZAWYGLXXRSO-UHFFFAOYSA-L

SMILES string

O.Br[Co]Br

form

solid

reaction suitability

core: cobalt
reagent type: catalyst

Quality Level

100

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Related Categories

Application

Catalyst for C-metal, C-heteroatom and C-C bond formations, addition to unsaturated bonds, cyclizations, functional group transformations, polymerization, oxidations and reductions, carbonylations.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX3872
MKCS8759
MKCS0055
MKCK6182
MKCH1323

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Kei Murakami et al.
Organic letters, 11(11), 2373-2375 (2009-05-12)
Cobalt(II) bromide catalyzes arylzincation of alkynes with arylzinc iodide x lithium chloride complexes in acetonitrile. The scope of the arylzincation is wide enough to use unfunctionalized alkynes, such as 6-dodecyne, as well as arylacetylenes. The inherent functional group compatibility of
Gerhard Hilt et al.
Chemical communications (Cambridge, England), (11), 1474-1475 (2005-03-10)
The intermolecular cyclotrimerisation of terminal and internal alkynes can be catalysed by simple cobalt complexes such as a CoBr2(diimine) under mild reaction conditions when treated with zinc and zinc iodide with high regioselectivity in excellent yields.
Hyacinthe Fillon et al.
Journal of the American Chemical Society, 125(13), 3867-3870 (2003-03-27)
A new chemical method for the preparation of arylzinc intermediates is described in acetonitrile, on the basis of the activation of aryl bromides by low-valent cobalt species arising from the reduction of cobalt halide by zinc dust. This procedure allows
Efficient cobalt-catalyzed formation of unsymmetrical biaryl compounds and its application in the synthesis of a sartan intermediate.
Muriel Amatore et al.
Angewandte Chemie (International ed. in English), 47(11), 2089-2092 (2008-02-09)

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