alkyne


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alkyne

 [al´kīn]
an aliphatic hydrocarbon containing a triple bond.

alkyne

[al′kīn]
an unsaturated aliphatic hydrocarbon containing at least one triple bond in the carbon chain, such as acetylene.

alkyne (alˑ·kīnˈ),

n unsaturated hydrocarbon compound that has triple covalent bonds and CnH2n−2 as the general chemical formula. This functional group is not common in components of essential oils.

alkyne

an aliphatic hydrocarbon containing a triple bond.
References in periodicals archive ?
2008) Efficient and stereo selective synthesis of yellow scale pheromone via alkyne haloboration, Zr-catalyzed asymmetric carboalumination of alkenes (ZACA reaction), and Pd-catalyzed tandem Negishi coupling.
Cross-linked polymeric adhesives were made from polyvalent azide and alkyne building blocks, owing their adhesiveness to the strong affinity of triazoles for metal ions and surfaces.
An exceptionally facile "contrathermodynamic" multipositional isomerization of alkynes with potassium 3-aminopropylamide.
This method had been employed for the addition of both azido [52, 62, 63] and alkyne functionalities to the BODIPY core in reactions catalyzed by acetic acid and piperidine (Figure 29).
2007) Bonding and reactivity of heavier group 14 element alkyne analogues.
The 1,3-dipolar cycloaddition of an alkyne with a nitrile oxide from the analogous alpha-chlorobenzaldoxime afforded the desired isoxazole.
Papers discuss bite angle effects of diphosphines in carbonylation reactions, reactivity of pincer complexes toward carbon monoxide, enantioselective carbonylation reactions, microwave-promoted carbonylations, recent advances in two-phase carbonylation, catalytic carbonylations in ionic liquids, carbonylation of alkenes and dienes, recent developments in alkyne carbonylation, carbonylation of allenes, homogenous carbonylation reactions in the synthesis of compounds of pharmaceutical importance, and palladium-assisted synthesis of heterocycles via carbonylation reactions.
Chlorosilanes are utilized in hydrosilation where the addition of a SiH compound to a multiple bond, often an alkene or alkyne, is the pathway to synthesizing a veriety of unique polysiloxane systems.
Reaction of the lithium derivative of compound 11 (obtained by protection of the commercial 3-butyn-2-ol with tert-butyldimethylsilyl chloride) [11] with ketone 10a at -78[degrees]C afforded the alkyne 12 in 85% yield, as a 1:1 mixture of diastereomers that could not be separated.
Equal to the value of this reactivity and its products is the facility with which the key reaction substrates are prepared in 2-5 steps from cheap, commercial alkyne and carbonyl building blocks.
The author has organized the main body of his text in seven chapters devoted to nucleophilic substitution and elimination, alkene and alkyne chemistry, nucleophilic additions to carbonyl groups, enolate chemistry, aromatic chemistry, rearrangements, and ligand coupling processes.