Skip to Content
Merck
All Photos(3)

Key Documents

More Documents

334030

Sigma-Aldrich

Cobalt(II) bromide hydrate

Synonym(s):

Cobaltous bromide hydrate

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
CoBr2 · xH2O
CAS Number:
85017-77-2
Molecular Weight:
218.74 (anhydrous basis)
EC Number:
232-166-7
MDL number:
MFCD00150208
UNSPSC Code:
12352300
PubChem Substance ID:
24860213

form

solid

Quality Level

100

reaction suitability

core: cobalt
reagent type: catalyst

SMILES string

O.Br[Co]Br

InChI

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

InChI key

MOTZAWYGLXXRSO-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

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

Signal Word

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 Code

11 - Combustible Solids

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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.
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
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)
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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service