Results 11 to 20 of about 31,299 (256)

Additive-assisted regioselective 1,3-dipolar cycloaddition of azomethine ylides with benzylideneacetone [PDF]

open access: diamondBeilstein Journal of Organic Chemistry, 2014
1,3-Dipolar cycloadditions of isatins, benzylamine and benzylideneacetones were studied to prepare a series of novel spiropyrrolidine-oxindoles – 4′-acetyl-3′,5′-diarylspiro[indoline-3,2′-pyrrolidin]-2-ones and 3′-acetyl-4′,5′-diarylspiro[indoline-3,2 ...
Chuqin Peng   +5 more
doaj   +2 more sources

A Molecular Electron Density Theory Study of the [3+2] Cycloaddition Reaction of an Azomethine Ylide with an Electrophilic Ethylene Linked to Triazole and Ferrocene Units [PDF]

open access: yesMolecules, 2022
The [3+2] cycloaddition (32CA) reaction of an azomethine ylide (AY) with an electrophilic ethylene linked to triazole and ferrocene units has been studied within the Molecular Electron Density Theory (MEDT) at the ωB97X-D/6-311G(d,p) level.
Luis R. Domingo   +2 more
doaj   +2 more sources

The azomethine ylide route to amine C-H functionalization: redox-versions of classic reactions and a pathway to new transformations. [PDF]

open access: yesAcc Chem Res, 2015
Conspectus Redox-neutral methods for the functionalization of amine α-C–H bonds are inherently efficient because they avoid external oxidants and reductants and often do not generate unwanted byproducts. However, most of the current methods for amine α-C–
Seidel D.
europepmc   +2 more sources

Topological classification of cycloadditions occurring on-surface and in the solid-state [PDF]

open access: yesCommunications Chemistry
The study of cycloaddition mechanisms is central to the fabrication of extended sp 2 carbon nanostructures such as graphene nanoribbons and spin chains. Reaction modeling in this context has focused mostly on putative, energetically preferred, exothermic
Juan Li   +15 more
doaj   +2 more sources

Polar [3+2] cycloaddition between N-methyl azomethine ylide and trans-3,3,3-trichloro-1-nitroprop-1-ene

open access: yesScientiae Radices, 2022
Pyrrolidines are important heterocyclic organic compounds which show biological effects. Many of them are successfully used in medicine. These compounds can also be applied in industry, for example as dyes or agrochemical substances. Therefore, the study
Magdalena Żmigrodzka   +5 more
semanticscholar   +1 more source

Fully conjugated azacorannulene dimer as large diaza[80]fullerene fragment

open access: yesNature Communications, 2022
Heterofullerenes are an important synthetic target for organic chemists. Here, the authors demonstrate a fully conjugated azacorannulene dimer starting from a bifunctional polycyclic aromatic azomethine ylide, providing a powerful method for the bottom ...
Weifan Wang   +4 more
doaj   +1 more source

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