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Organics, Volume 6, Issue 3

September 2025 - 16 articles

Cover Story: Polypropionates are structural motifs commonly found in bioactive polyketide natural products. Their complex stereochemical arrays make them both attractive and challenging synthetic targets. Hydroxymethyl 1,3-diols, frequently embedded within polypropionate chains, are key building blocks in macrolide antibiotics and related therapeutic agents. In this work, we describe a complementary methodology for the regio- and diastereoselective preparation of syn- and anti-hydroxymethyl 1,3-diols via selective opening of TIPS-protected 2,3-epoxy alcohols. Employing copper-catalyzed alkenyl Grignard reagents and a propynyl alanate–reduction sequence, this unified approach delivers high regioselectivity and stereocontrol. The strategy provides a modular platform to construct polypropionate fragments, advancing access to complex polyketides such as mycinamicins and aldgamacins. View this paper
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Articles (16)

  • Article
  • Open Access
696 Views
14 Pages

Degrees of Sulfonation: Mapping the Reactivity Landscape of Acridine and Acridone

  • Péter Kisfaludi,
  • Sára Spátay,
  • Péter Huszthy and
  • Ádám Golcs

12 September 2025

Although sulfonated acridines and acridones are valuable scaffolds in diagnostics and materials science, to our best knowledge, there is no comprehensive study that addresses how the degree of sulfonation depends on reaction parameters. To fill this...

  • Article
  • Open Access
630 Views
14 Pages

8 September 2025

Several fluoro phenyl triazoles were synthesized using click chemistry between fluoro phenyl azides and phenyl acetylene. Under ultrasound irradiation, this synthetic procedure was performed with Cu (I) in the presence of 1,10-phenanthroline. It is f...

  • Review
  • Open Access
5,569 Views
41 Pages

Synthesis and Biological Activity of 5-Substituted-2,4-dihydro-1,2,4-triazole-3-thiones and Their Derivatives

  • Abdukhakim A. Ziyaev,
  • Sobirdjan A. Sasmakov,
  • Turdibek T. Toshmurodov,
  • Jaloliddin M. Abdurakhmanov,
  • Saidazim A. Ikramov,
  • Shukhrat Sh. Khasanov,
  • Oybek N. Ashirov,
  • Mavluda A. Ziyaeva and
  • Dilrabo B. Begimqulova

4 September 2025

Derivatives of 1,2,4-triazole-3-thione exhibit a variety of biological activities, including antimicrobial (e.g., compounds 31d–k, 32d, 36f), antitumor (e.g., 71, 77a–c, 82g, 94h), anti-inflammatory, analgesic (100a, 102, 105), antidiabet...

  • Article
  • Open Access
1,183 Views
17 Pages

Microwave-Assisted Catalytic Transfer Hydrogenation of Chalcones: A Green, Fast, and Efficient One-Step Reduction Using Ammonium Formate and Pd/C

  • Wender Alves Silva,
  • Sayuri Cristina Santos Takada,
  • Felipe Marques Nogueira and
  • Luiz Arthur Ramos Almeida

3 September 2025

Catalytic transfer hydrogenation (CTH) and microwave-assisted organic synthesis (MAOS) have each advanced the sustainability of reduction chemistry; however, their combined application to conjugated enones remains largely unexplored. To the best of o...

  • Article
  • Open Access
1,789 Views
28 Pages

Synthesis, Purification, Characterization, and ABTS Antioxidant Evaluation of Novel Azo Dyes

  • Jeremy A. Rodríguez-Vargas,
  • Sebastián H. Díaz-Rodríguez,
  • Víctor G. Vergara-Rodríguez,
  • Ángel Vidal-Rosado,
  • Cristtian Rivera-Torres,
  • Alejandra Ríos-Rodríguez,
  • Martín Rodríguez-Del Valle,
  • Daliana Agosto-Disdier,
  • Marielys Torres-Díaz and
  • Kai H. Griebenow
  • + 1 author

2 September 2025

The search for bioactive compounds with antioxidant properties is critical in combating oxidative stress-related diseases and advancing novel therapeutic agents. Azo dyes, traditionally used in textiles, food, and cosmetics, have recently attracted a...

  • Article
  • Open Access
832 Views
11 Pages

Mechanochemical Synthesis, Spectroscopic Characterization and Molecular Structure of Piperidine–Phenytoin Salt

  • María Isabel Amil-Miranda,
  • Armando Pineda-Contreras,
  • Francisco Javier Martínez-Martínez,
  • Marcos Flores-Álamo,
  • Hector García-Ortega and
  • Juan Saulo González-González

22 August 2025

Phenytoin is an anticonvulsant drug that suffers from low aqueous solubility. The formation of phenytoin salts is a strategy employed to address this issue. A phenytoin–piperidine salt (PPD–PNT) was synthesized by solvent-assisted grindin...

  • Article
  • Open Access
645 Views
20 Pages

Synthetic Approaches to Steroidal Thiosemicarbazones, 1,3,4-Thia(selena)diazolines, and Oxalate-Linked Dimers

  • Luis A. Méndez-Delgado,
  • Mónica Martínez-Montiel,
  • Alma Fuentes-Aguilar,
  • Socorro Meza-Reyes,
  • Sara Montiel-Smith,
  • José Luis Vega-Baez,
  • José M. Padrón and
  • Penélope Merino-Montiel

22 August 2025

A total of 24 novel steroidal derivatives were synthesized, including 1,3,4-thia(selena)diazolines and structurally unique spirothiadiazolines, obtained through intramolecular cyclization under standard acetylation conditions. This strategy was furth...

  • Article
  • Open Access
594 Views
13 Pages

12 August 2025

Porous carbon-loaded MnO was prepared via a combination of the sol–gel method and the chemical blow molding method using polyvinylpyrrolidone (PVP) and manganese nitrate as starting materials. SEM, EDX, TEM, FTIR, XRD, XPS, nitrogen adsorption&...

  • Article
  • Open Access
636 Views
16 Pages

Profiling of Disubstituted Chloroacetamides’ Potential Biological Activity by Liquid Chromatography

  • Suzana Apostolov,
  • Dragana Mekić,
  • Marija Mitrović,
  • Slobodan Petrović and
  • Gyöngyi Vastag

4 August 2025

Modern agriculture relies heavily on the use of pesticides, with one-third of them being herbicides. Chloroacetamides are the most widely used herbicides because of their high effectiveness, but their extensive use poses environmental challenges and...

  • Article
  • Open Access
1,109 Views
10 Pages

1 August 2025

DFT calculations at the B3LYP/aug-cc-pVDZ level of theory on some aromatic substrates showed that in the HOMO (Highest Occupied Molecular Orbital) of nitrobenzene, the atomic coefficients are not in agreement with the meta-directing behavior of this...

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Organics - ISSN 2673-401XCreative Common CC BY license