Results 141 to 150 of about 22,841 (254)

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer   +6 more
wiley   +1 more source

Synthesis and antimicrobial activities of some pyridinium salts

open access: yes, 2006
Some pyridinium oxime ether derivatives comprising naphtyl, phytalimido, 2,6-dichlorophenyl and cyclohexyl rings linked to the ether function by a methylen bridge were synthesized and screened for possible antibacterial and antifungal activities using ...
Alptüzün V., Taşli H., Erciyas E.
core  

Emerging Trends in Organic Photoreactions Utilizing Disulfides

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar   +3 more
wiley   +1 more source

Quaternary Carbons from Amines and Acids. [PDF]

open access: yesJ Am Chem Soc
Zhao R   +6 more
europepmc   +1 more source

Chemical Syntheses of 3′ and 5′ Phosphorylated Oligonucleotides: An Overview

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
This review provides an overview of the various chemical methods employed in the synthesis of oligonucleotides bearing a phosphate group at their 3′ or 5′ end. Notably, it presents modified phosphoramidites and supports developed for this purpose. Oligonucleotides (ON) with a phosphate monoester group at their 3′ or 5′ end have applications in many ...
Rémy Lartia
wiley   +1 more source

N-Quaternary Compounds. Part VI. Pyridinium 3-oxides. [PDF]

open access: yesActa Chemica Scandinavica, 1969
Kjell Undheim   +5 more
openaire   +1 more source

The Synthesis of New Pyrylium and Pyridinium Salts.

open access: yes, 2012
The synthesis, properties, and applications of symmetrical and unsymmetrical pyrylium and pyridinium salts is investigated. Our group has found particular interest in chiral pyrylium salts due to the fact that they are almost unknown in the literature ...
Korbitz, Holland.
core  

HFIP-Induced Formation of <i>O</i>-Aryl Oxyallyl Cation and Nucleophilic Addition with Sodium Sulfinate Salt. [PDF]

open access: yesJ Org Chem
Aldás-Bedón J   +6 more
europepmc   +1 more source

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