Cu Organocopper Compounds

Bauer, H.; Faust, Jürgen; Froböse, Rolf; Füssel, Johannes

doi:10.1007/978-3-662-06439-9

Cited by 5 publications

(1 citation statement)

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“…On the other hand, the solubility of acetylene is not considered problematic, because it readily dissolves in most organic solvents, and probably immediately reacts to form copper acetylide (Cu 2 C 2 ) . For safety reasons, the neat reaction was not evaluated, because the presumed intermediate copper acetylide (Cu 2 C 2 ) is highly explosive in dry form . When this species is formed in small amount in situ in solution, the safety risks are reduced to a minimum.…”

Section: Resultsmentioning

confidence: 99%

The Use of Calcium Carbide as Acetylene Source in a Three‐Component Coupling with ω‐Chlorinated Ketones and Primary Amines

Beek

Gadde

Tehrani

2018

Chemistry A European J

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Calcium carbide was used in a Cu -catalysed three-component coupling with ω-chlorinated ketones and primary amines to generate terminal 2-alkynyl-N-heterocycles. The formation of an imine and the subsequent intramolecular substitution results in an active electrophilic iminium species, which can be alkynylated by in situ formed copper acetylide. A number of aliphatic primary (functionalised) amines and aliphatic or aromatic alkynes together with different alkyl- or aryl-substituted γ- or δ-chloroketones could be used. Simple acid-base workup instead of column chromatography can be applied to obtain the resulting 2-alkynylpyrrolidines and 2-alkynylpiperidines.

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Section: Resultsmentioning

confidence: 99%

The Use of Calcium Carbide as Acetylene Source in a Three‐Component Coupling with ω‐Chlorinated Ketones and Primary Amines

Beek

Gadde

Tehrani

2018

Chemistry A European J

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Homoleptic transition metal acetylides

Buschbeck

Low

Lang

2011

Coordination Chemistry Reviews

121

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Raman Spectra and Corresponding Strain Effects in Graphyne and Graphdiyne

Zhang¹,

Wang²,

Li³

et al. 2016

J. Phys. Chem. C

139

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We systematically studied the Raman spectra of graphyne (GY) and graphdiyne (GDY), analyzing their features under mechanical strain by group theory and first-principles calculations. The G bands in GY and GDY were softened compared with that in graphene, which provides a fingerprint useful in detecting their synthesis. We established a unified formulation to describe the effects of both uniaxial and shear strains, and combined this with calculated results to reveal the relationship underlying the changes in Raman evolution under various strains. Each doubly degenerate mode splits into two branches under strain, both of which are red-shifted with tensile uniaxial strain, but one is red-shifted and the other is blue-shifted under shear strain. The splitting under shear strain is double that under uniaxial strain.

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Cu Organocopper Compounds

Cited by 5 publications

References 0 publications

The Use of Calcium Carbide as Acetylene Source in a Three‐Component Coupling with ω‐Chlorinated Ketones and Primary Amines

The Use of Calcium Carbide as Acetylene Source in a Three‐Component Coupling with ω‐Chlorinated Ketones and Primary Amines

Homoleptic transition metal acetylides

Raman Spectra and Corresponding Strain Effects in Graphyne and Graphdiyne

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