Decreasing Distortion Energies without Strain: Diazo-Selective 1,3-Dipolar Cycloadditions. [PDF]
Gold B, Aronoff MR, Raines RT.
europepmc +2 more sources
Nanoparticle‐Catalysed 1,3‐Dipolar Cycloadditions
The 1,3‐dipolar cycloadditions of azomethine‐ylides and ‐imines, nitrones, nitrilimines, and azides catalysed by inorganic nanoparticles are described. Emphasis is given to the nanometric catalysts involved, their structure, characterisation, and recyclability and, when remarkable, their preparation.
Ponti A., Molteni G.
openaire +4 more sources
ChemInform Abstract: Iridium‐Catalyzed 1,3‐Dipolar Cycloadditions [PDF]
AbstractReview: 47 refs.
Luis A. Oro, Daniel Carmona
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Discovery of new mutually orthogonal bioorthogonal cycloaddition pairs through computational screening. [PDF]
Density functional theory (DFT) calculations and experiments in tandem led to discoveries of new reactivities and selectivities involving bioorthogonal sydnone cycloadditions.
Houk, KN +3 more
core +1 more source
Cycloadditions with 2-Chloro-1-Nitroethylene
2-chloronitroethylene replaces successfully the still elusive unsubstituted nitroacetylene in both the 1,3-dipolar and Diels-Alder cycloadditions. These reactions generally afford interesting nitrated cyclic and heterocyclic compounds.
R. Verbruggen, H.G. Viehe
doaj +1 more source
1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with nitrile oxides and nitrones [PDF]
1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with nitrile oxides and nitrones is described. A series of novel isoxazolines are isolated from the nitrile oxide cycloadditions, whilst the isoxazolines generated from the nitrone cycloadditions ...
Kissane, Marie +2 more
core +1 more source
The ZnBr2 complex of the title compound has been studied by both structural and theoretical methods. Similar reactivities have been observed for the nitrone alone and the complex in 1,3-dipolar cycloadditions and nucleophilic additions.
Tomas Tejero +5 more
doaj +1 more source
On the strong difference in reactivity of acyclic and cyclic diazodiketones with thioketones: experimental results and quantum-chemical interpretation [PDF]
The 1,3-dipolar cycloaddition of acyclic 2-diazo-1,3-dicarbonyl compounds (DDC) and thioketones preferably occurs with Z,Econformers and leads to the formation of transient thiocarbonyl ylides in two stages.
Holleman +8 more
core +4 more sources
Intramolecular Cycloaddition of Imines of Cysteine Derivatives
Azomethine ylides were generated from Schiffs bases of S-allylcysteine methyl ester and their intramolecular 1,3-dipolar cycloadditions were studied. These reactions led to the synthesis of thieno[3,4-b]pyrrole derivatives in good yield.
Teresa M. V. D. Pinho e Melo +2 more
doaj +1 more source
Functionalization of Graphene via 1,3-Dipolar Cycloaddition [PDF]
Few-layer graphenes (FLG) produced by dispersion and exfoliation of graphite in N-methylpyrrolidone were successfully functionalized using the 1,3-dipolar cycloaddition of azomethine ylides. The amino functional groups attached to graphene sheets were quantified by the Kaiser test.
M. Quintana +5 more
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