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Merck
CN

208825

Copper(I) oxide

powder, ≤7 μm, 97%

Synonym(s):

Cuprous oxide

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About This Item

Linear Formula:
Cu2O
CAS Number:
Molecular Weight:
143.09
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-270-7
MDL number:
Assay:
97%
Form:
powder
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Quality Segment

assay

97%

form

powder

contains

stabilizer

particle size

≤7 μm

density

6 g/mL at 25 °C (lit.)

SMILES string

[Cu]O[Cu]

InChI

1S/2Cu.O

InChI key

BERDEBHAJNAUOM-UHFFFAOYSA-N

General description

Copper(I)oxide is a weak base that can be used in nucleophilic substitution, decarboxylation, cyclocondensation, and 1,1-addition reactions. It can also be used to form carbenoid intermediates from diazo compounds and radicals from arenediazonium salts.

Application

Copper(I) oxide can be used as a catalyst to synthesize:
  • Ynones via solvent-free Sonogashira reaction.
  • N-Heteroaryl derivatives via cross-coupling of nitrogen heterocycles with halopyridines.


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Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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