Results 71 to 80 of about 31,299 (256)

azomethine ylides

, 2008
Citation: 'azomethine ylides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00565 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Synthesis of 2‐Fluoropyrroles via [4 + 1] Cycloaddition of α,β‐Unsaturated Imines with In Situ‐Generated Difluorocarbene

European Journal of Organic Chemistry, Volume 28, Issue 35, September 26, 2025.
2‐Fluoropyrroles are synthesized via the [4 + 1] cycloaddition of α,β‐unsaturated imines with difluorocarbene, generated in situ from trimethylsilyl 2,2‐difluoro‐2‐(fluorosulfonyl)acetate (TFDA). The α,β‐unsaturated imines are treated with TFDA in the presence of a Proton Sponge catalyst.
Kohei Fuchibe, Takaya Miura, Junji Ichikawa   +2 more
wiley   +1 more source

1,3-Dipolar Cycloaddition Reactions of Azomethine Ylides with Carbonyl Dipolarophiles Yielding Oxazolidine Derivatives

Molecules, 2016
We provide a comprehensive account of the 1,3-dipolar cycloaddition reactions of azomethine ylides with carbonyl dipolarophiles. Many different azomethine ylides have been studied, including stabilized and non-stabilized ylides.
Adam G. Meyer, John H. Ryan
doaj   +1 more source

Steuerbare endo/exo‐Selektivität in direkten katalytisch‐ asymmetrischen 1,3‐dipolaren Cycloadditionen mit polyfunktionellen Lewis‐Säure‐/Azolium‐Aryloxid‐Katalysatoren

Angewandte Chemie, Volume 137, Issue 34, August 18, 2025.
Ein neuartiges Konzept für katalytische asymmetrische 1,3‐dipolare Cycloadditionen mit Iminoestern verwendet modulare polyfunktionelle Lewis‐Säure‐/Azolium‐Aryloxid‐Betain‐Katalysatoren, die die endo‐ und exo‐Selektivität durch Anpassungen des Metallzentrums, des Azoliums und der Sterik steuern. DFT‐Studien zeigen eine nahezu perfekte räumliche Passung
Adrian Bürstner, Patrick M. Becker, Alexander Allgaier, Lucca Pfitzer, Daniel M. Wanner, Johanna Dollinger, Felix Willig, Justin Herrmann, Vukoslava Miskov‐Pajic, Andreas C. Hans, Wolfgang Frey, Joris van Slageren, Johannes Kästner, René Peters   +13 more
wiley   +1 more source

Cover Feature: Synthesis of 3‐Borylated Pyrrolidines by 1,3‐Dipolar Cycloaddition of Alkenyl Boronates and Azomethine Ylide (Chem. Eur. J. 54/2022) [PDF]

, 2022
Oleksandr S. Liashuk, Ihor A. Ryzhov, Oleksandr V. Hryshchuk, Bohdan V. Vashchenko, Pavlo V. Melnychuk, Yulian M. Volovenko, Oleksandr O. Grygorenko   +6 more
openalex   +1 more source

Thioxanthone: A Benchmark Photocatalyst for Organic Synthesis

ChemCatChem, Volume 17, Issue 16, August 18, 2025.
Thioxanthone is a highly versatile and effective organocatalyst for photochemical applications, with its low‐toxicity, metal‐free structure driving growing interest in sustainable photocatalysis. Building on our previous 2021 review, this update covers advances from 2021–2025 in thioxanthone‐based synthetic organic photochemistry – excluding ...
Vera P. Demertzidou, Elpida Skolia, Christoforos G. Kokotos   +2 more
wiley   +1 more source

The regioselective synthesis of spirooxindolo pyrrolidines and pyrrolizidines via three-component reactions of acrylamides and aroylacrylic acids with isatins and α-amino acids

Beilstein Journal of Organic Chemistry, 2014
The regioselective three-component condensation of azomethine ylides derived from isatins and α-amino acids with acrylamides or aroylacrylic acids as dipolarophiles has been realized through a one-pot 1,3-dipolar cycloaddition protocol.
Tatyana L. Pavlovskaya, Fedor G. Yaremenko, Victoria V. Lipson, Svetlana V. Shishkina, Oleg V. Shishkin, Vladimir I. Musatov, Alexander S. Karpenko   +6 more
doaj   +1 more source

Synthesis, Photophysical, and Chemiexcitation Properties of Luminol‐Fullerene Dyads: Toward Chemiexcitation Electron Transfer

Chemistry – A European Journal, Volume 31, Issue 40, July 17, 2025.
The emission properties of fullerene‐luminol dyads, following either irradiation or chemiexcitation, are evaluated. Strong luminol (chemi)luminescence quenching is partially attributed to electron transfer. Abstract Fullerene‐based donor‐acceptor (D‐A) dyads have been extensively studied for their unique electronic properties, with applications in ...
Theodoros Mikroulis, Gemma M. Rodríguez‐Muñiz, Demeter Tzeli, Georgios Rotas, Miguel A. Miranda, Georgios C. Vougioukalakis   +5 more
wiley   +1 more source

Synthesis of Dihydrouracils Spiro-Fused to Pyrrolidines: Druglike Molecules Based on the 2-Arylethyl Amine Scaffold

Molecules, 2010
The synthesis of a small library of dihydrouracils spiro-fused to pyrrolidines is described. These compounds are synthesized from b-aryl pyrrolidines, providing products with the 2-arylethyl amine moiety, a structural feature often encountered in ...
Daniel Blanco-Ania, Carolina Valderas-Cortina, Pedro H.H. Hermkens, Leo A.J.M. Sliedregt, Hans W. Scheeren, Floris P.J.T. Rutjes   +5 more
doaj   +1 more source

Correction: Covalent organic functionalization of graphene nanosheets and reduced graphene oxide via 1,3-dipolar cycloaddition of azomethine ylide. [PDF]

Nanoscale Adv, 2021
Basta L, Moscardini A, Fabbri F, Bellucci L, Tozzini V, Rubini S, Griesi A, Gemmi M, Heun S, Veronesi S.   +9 more
europepmc   +1 more source