Results 41 to 50 of about 1,523 (159)

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

N‐Glycosyl Triazoline Glycomimetics via Huisgen Cycloaddition With an Electron‐Deficient Alkene and BF3‐Catalysed Triazoline Fragmentation to Aziridines

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Glycomimetics with triazoline and aziridine groups were synthesised via diastereoselective Huisgen cycloaddition from glycosyl azides. Density functional theory was applied to define the mechanism for BF3 promoted aziridine formation. Triazoline and aziridine derivatives were synthesised by diastereo‐ and regioselective Huisgen cycloaddition of 2,3,4,6‐
Aaron McCormack   +4 more
wiley   +1 more source

Electrophilic Iodination of Heterocyclic Compounds. Recent Advances 2008–2025: Part II

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Electrophilic iodination using molecular iodine and iodide sources represents an efficient approach for accessing valuable iodinated organic compounds. This review highlights recent advances in the iodination of heterocyclic compounds from 2008 to 2025, emphasizing the role of heteroaryl iodides as important synthetic intermediates for biologically ...
Njomza Ajvazi, Stojan Stavber
wiley   +1 more source

Structural‐to‐Functional Complexity Transformations Enabled by Bridged Polyheterocycles: Access to Cis‐1,3‐Diamines and Amino‐Alcohols

open access: yesChemistryEurope, Volume 4, Issue 6, June 2026.
Polycyclic intermediates enable stereocontrolled synthesis of densely functionalized cis‐1,3‐diamine and amino alcohol carbocycles and heterocycles via structural‐to‐functional complexity transformations from low‐complexity starting material. Cis‐1,3‐functionalized carbocycles and saturated heterocycles are ubiquitous motifs in natural products ...
Jiayi Zhu   +2 more
wiley   +1 more source

Soft Ferroelectrics in One Dimension: Ferroelectric Columnar Liquid Crystals

open access: yesChemPlusChem, Volume 91, Issue 6, June 2026.
Helical ferroelectric columnar liquid crystals (FCLCs) confine bistable axial polarization within individual columns. An electric field reversibly flips the macrodipole, enabling two nonvolatile states readable as “0” and “1.” This Cconcept highlights supramolecular locking and helical architectures that deliver genuine switching and long‐lived zero ...
Seongwon Park, Byoung‐Ki Cho
wiley   +1 more source

The Dithiirane–Thiosulfine Equilibrium Revisited—A Computational Study of Structure, Thermodynamics and Kinetics

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 6, June 2026.
The dithiirane–thiosulfine equilibrium has been revisited by means of modern computational chemistry tools to shed light on whether stable thiosulfines might be isolated. ABSTRACT Thiosulfines as reactive S‐centered 1,3‐dipoles undergoing (3 + 2)‐cycloadditions are still of interest in the chemistry of sulfur‐rich heterocycles.
Dirk Buddensiek, Thomas Behrens
wiley   +1 more source

1, 3-Dipolar Cycloaddition of Diazomethane with Carbon-Carbon Unsaturated Systems Involving Nitrofuran Ring

open access: yesJournal of Synthetic Organic Chemistry, Japan, 1968
1, 3-Dipolar cycloaddition reaction of diazomethane with 5-nitro-2-furylacrylic acid gave 4- (5'-nitro-2'-furyl) -3-carbomethoxypyrazoline (3), mp 184485°C, in 80% yield. A similar reaction with 5-nitro-2-furylpropiolic acid afforded the corresponding isomeric mixture of the 2-pyrazole derivatives in 25% yield. (1) was refluxed in toluene to afford 2- (
SASAKI, Tadashi, SHOJI, Katsuhiko
openaire   +3 more sources

Deciphering the properties and reaction mechanism of anhydromevalonate phosphate decarboxylase, a prenylated flavin mononucleotide‐dependent enzyme in the archaeal mevalonate pathway

open access: yesThe FEBS Journal, Volume 293, Issue 11, Page 3303-3319, June 2026.
Characterization of anhydromevalonate phosphate decarboxylase, the UbiD‐family decarboxylase involved in the archaeal mevalonate pathway, was conducted. The enzyme is responsible for the biosynthesis of isoprenoids, such as archaeal membrane lipids, respiratory quinones, and dolichols.
Rino Ishikawa   +9 more
wiley   +1 more source

Fused 1,5-benzothiazepines from o-aminothiophenol and its derivatives as versatile synthons

open access: yesActa Chimica Slovenica, 2014
This review describes the reactions of o-aminothiophenol and its derivatives as building blocks for the synthesis of polyfunctionalised 1,5-benzothiazipines with pharmacological interest.
Batchu Chandra Sekhar
doaj  

Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 19, 22 May 2026.
Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley   +1 more source

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