Results 71 to 80 of about 16,682 (222)

Chemical Structure Data File For K. Zong's Thesis, "The 1,3-dipolar cycloaddition of nitrile oxides to vinylboronic esters and asymmetric approaches." [PDF]

, 2020
This Structure Data File (SDfile) is associated with the thesis: Zong, K. "The 1,3-dipolar cycloaddition of nitrile oxides to vinylboronic esters and asymmetric approaches." and http://library.ua.edu/vwebv/holdingsInfo?bibId=851312 It is distributed by ...
Scalfani, Vincent F.
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Decarboxylation-Driven Double Annulations: Innovative Multi-Component Reaction Pathways

Molecules
A concerted five-component reaction strategy has been developed, featuring double [3+2] cycloadditions utilizing aspartic acid. This approach provides valuable insights into mechanistic pathways, allowing for the distinction between concerted and ...
Desheng Zhan, Gang Yang, Tieli Zhou, Sashirekha Nallapati, Xiaofeng Zhang   +4 more
doaj   +1 more source

Reaction Enumeration Based on NBO‐Informed Molecular Graphs

Journal of Computational Chemistry, Volume 47, Issue 19, 15 July 2026.
NBO‐informed molecular graphs represent chemistry via valence orbitals rather than atomic connectivity, enabling consistent reaction analysis across environments. By identifying delocalized motifs and increasing complexity adaptively, the framework enables efficient exploration of inaccessible mechanisms and diverse catalytic and reaction networks for ...
Javier E. Alfonso‐Ramos, Thijs Stuyver
wiley   +1 more source

One-flask synthesis of 1,3,5-trisubstituted 1,2,4- triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition [PDF]

, 2014
[[abstract]]A new “one-flask” synthesis of 3,5-disubstituted 1,2,4-triazoles has successfully been developed to synthesize a series of 3,5-disubstituted 1,2,4-triazoles.
Wang, Li-Ya;Wang, Li-Ya;蔡建鈞;Tsai, Henry J;Lin, Hui-Yi;Lin, Hui-Yi;Ka, Kimiyoshi;Kaneko, Kimiyoshi;Che, Fen-Ying;Cheng, Fen-Ying;Sh, Hsin-Siao;Shih, Hsin-Siao;Won, Fung Fuh;Wong, Fung Fuh;Hu, Jiann-Jyh;Huang, Jiann-Jyh
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Oligonucleotides Post‐Synthetic Modifications: An Overview of Clickable Nucleoside Phosphoramidites Suitable for Solid‐Phase Synthesis

ChemBioChem, Volume 27, Issue 13, 14 July 2026.
Clickable nucleoside phosphoramidites can be incorporated into oligonucleotides via solid‐phase synthesis (SPOS), enabling rapid and site‐specific post‐functionalization using bioorthogonal reactions. This review highlights their design, synthetic accessibility, and SPOS incorporation requirements, along with the kinetics and efficiency of post ...
Sébastien Depienne, Alexandra Bristiel, Dominique Urban, Dominique Guianvarc’h   +3 more
wiley   +1 more source

The Reactivity of Addends in the 1,3-Dipolar Cycloaddition Reaction [PDF]

, 2020
The influence of donor-acceptor interactions and localisation energies on the reactivity of addends in the 1,3-dipolar cycloaddition reaction is examined.
Samuilov Y., Konovalov A.
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A Modular Synthesis of Isoindole/Indolizine Hybrids via the 1,3‐Dipolar Cycloaddition of Pyridine‐Based Mesoionics with Benzyne

European Journal of Organic Chemistry, Volume 29, Issue 26, 13 July 2026.
An approach to prepare pyrido[2,1‐a]isoindoles via the cycloaddition of pyridine‐based 1,3‐dipoles and benzyne is described, offering modular access to a range of substituted products by systematic tuning of the dipole. A modular strategy for the synthesis of fused indolizine/isoindole hybrids, pyrido[2,1‐α]isoindoles, via cycloaddition of pyridine ...
Samira Taghizadeh Nodehi, Mohammad Ghanbari, Bruce A. Arndtsen   +2 more
wiley   +1 more source

5-Benzoyl-N,4-diphenyl-4,5-dihydro-1H-pyrazole-3-carboxamide

Acta Crystallographica Section E, 2009
The title compound, C23H19N3O2, was synthesized by the 1,3-dipolar cycloaddition reaction of N-phenyl-α-diazoacetamide and chalcone. In the molecule, the pyrazoline ring assumes an envelope conformation.
Long He
doaj   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, Volume 32, Issue 26, 11 July 2026.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Aspects of the chemistry of some highly crowded aromatic ligands [PDF]

, 1990
A series of ortho-substituted arylchlorophosphoranes has been prepared. The structures of these compounds have been studied by the use of (^31)Cl n.q.r. and solid-state (^31)P n.m.r. . It has been shown that ortho substitution by groups such as CH(_3) or
Straw, T. A.
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