205540

Sigma-Aldrich

Copper(I) iodide

98%

Synonym(s):
Cuprous iodide
Empirical Formula (Hill Notation):
CuI
CAS Number:
Molecular Weight:
190.45
EC Number:
MDL number:
eCl@ss:
38150105
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor pressure

10 mmHg ( 656 °C)

assay

98%

form

powder

reaction suitability

reaction type: click chemistry
reagent type: catalyst
core: copper

mp

605 °C (lit.)

density

5.62 g/mL at 25 °C (lit.)

SMILES string

[Cu+].[I-]

InChI

1S/Cu.HI/h;1H/q+1;/p-1

InChI key

LSXDOTMGLUJQCM-UHFFFAOYSA-M

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Application

Optimal catalyst for stereospecific and regioselective reaction of silacyclopropanes with carbonyl compounds.

Packaging

50, 250 g in glass bottle
1 kg in glass bottle

signalword

Danger

hazcat

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1

storage_class_code

11 - Combustible Solids

WGK Germany

WGK 3

Flash Point F

Not applicable

Flash Point C

Not applicable

Certificate of Analysis

Certificate of Origin

Alkynyl sulfides and selenides from alkynyl bromides and diorganoyl chalcogenides promoted by copper (I) iodide.
Braga AL, et al.
Tetrahedron Letters, 34(3), 393-394 (1993)
Simon P H Mee et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 11(11), 3294-3308 (2005-03-24)
The combination of copper(I) iodide and cesium fluoride significantly enhances the Stille reaction. After extensive optimisation, a variety of electronically unfavourable and sterically hindered substrates were coupled in very high yields under mild conditions.
Convenient preparation of alkynyl selenides, sulfides and tellurides from terminal alkynes and prenylchalcogenyl halides in the presence of copper (I) iodide.
Braga AL, et al.
Tetrahedron Letters, 34(50), 8041-8042 (1993)
The high-temperature structural behaviour of copper (I) iodide.
Keen DA and Hull S.
Journal of Physics. Condensed Matter : An Institute of Physics Journal, 7(29), 5793-5793 (1995)
Novel preparation of σ-alkynyl complexes of transition metals by copper (I) iodide-catalysed dehydrohalogenation.
Sonogashira K, et al.
Journal of the Chemical Society. Chemical Communications, 9, 291-292 (1977)

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