cycloaddition

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cycloaddition

[¦sī·klō·ə′dish·ən]
(organic chemistry)
A reaction in which unsaturated molecules combine to form a cyclic compound.
References in periodicals archive ?
One aspect of this project will aim to establish ynamides as effective substrates for sydnone cycloaddition reactions. Ynamides are easily prepared in a single step and are stable, and easy to use.
Caption: FIGURE 3: Huisgen [3 + 2] cycloaddition reaction: the copper-catalyzed 1,3-dipolar cycloaddition of an azide to an alkyne to create 1,2,3-triazoles.
Houk, "Cycloaddition reactions of butadiene and 1,3-dipoles to curved arenes, fullerenes, and nanotubes: Theoretical evaluation of the role of distortion energies on activation barriers," Chemistry - A European Journal, vol.
Cycloaddition reactions are one of the most important synthetic processes, with both synthetic and mechanistic interest in organic chemistry.
Then the compound 12 was subjected to 1,3-dipolar cycloaddition reaction with the oxime 7a in the presence of NCS/NaHC[O.sub.3] in ethyl acetate as solvent to give very low yield of the compound 17a (Scheme 2).
During cycloaddition reaction, chalcone moiety was also brominated.
In this study, we report a method to introduce abundant nitrile groups to pristine graphene by cycloaddition reaction of graphene with tetracyanoethylene oxide [18-20] (TCNEO) Scheme 1).
His design employs either polyesters (more sustainable due to access to bio-based raw materials) or poly-imides (for high-temperature applications) that are functionalized with cyclobutane substrates through the photochemistry of maleic anhydrides, which undergo a [2[Plus]2] cycloaddition reaction to form cyclobutanes when exposed to one wavelength of light and the reverse when exposed to another.
We investigated the incorporation of water soluble Lewis acids that promote a 1, 3-dipolar cycloaddition reaction between organic molecules in water.
Flavindogenides as 2 p component in 1,3-dipolar cycloaddition reaction. Indian J.
These polymers have gained a huge interest academically in recent years as the azide group can undergo a cycloaddition reaction with a terminal alkyne group in presence of a Cu(I) catalyst to make block, graft, brush, and star polymers.
Philip Dawson, a member of Faculty of 1000 Biology and leading authority in chemistry and cell biology, reviewed a study and observed that the novel cycloaddition reaction is fast, very specific, and requires minimal manipulation of the cells.