Results 91 to 100 of about 6,473 (220)

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Truncation of Samroiyotmycin: Tailored seco‐Acids as Novel Antimalaria Compounds

European Journal of Organic Chemistry, EarlyView.
Six truncated samroiyotmycin‐derived antimalarials were synthesized by replacing the tosyloxazole unit with electron‐deficient aryl groups. The most active seco‐acid with EWG = 2 × CF3 outperformed the natural product SamA. Its enhanced activity supports a donor–acceptor interaction involving the electron‐poor aryl unit, consistent with inhibition of ...
Anton Czuczkowski, Anja Schäfer, Juliana A. Hüther, Bianca Wank, Robert Toews, Fotios Fotakis, Andreas Köhn, Markus Rehm, Matthias Rottmann, Anna Zens, Sabine Laschat   +10 more
wiley   +1 more source

Enantioselective Synthesis of Axially Chiral Diaryl Ethers via Rhodium‐Catalyzed [2 + 2 + 2] Cycloaddition

Angewandte Chemie, Volume 138, Issue 32, 3 August 2026.
An enantioselective rhodium‐catalyzed [2 + 2 + 2] cycloaddition enables the synthesis of axially chiral diaryl ethers. Carbonyl coordination ensures high reactivity and regioselectivity, affording products bearing up to four stereogenic axes with good enantio‐ and diastereoselectivity.
Yu Sato, Julong Jiang, Kairi Yamashiro, Ken Tanaka   +3 more
wiley   +2 more sources

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

Polymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani, Shengwei Sun, Erik Sundén, Diana Bernin, Per‐Olof Syrén   +4 more
wiley   +1 more source

Asymmetric Iron‐Catalyzed Vicinal C(sp3)─H Diamination of Carboxylic Acids

Angewandte Chemie, Volume 138, Issue 32, 3 August 2026.
An iron‐catalyzed vicinal α,β‐C(sp3)─H diamination of readily available carboxylic acids furnishes chiral α,β‐diamino acids in a single pot with high regio‐, diastereo‐, and enantioselectivity (up to >20:1 dr and >99% ee). ABSTRACT The direct construction of chiral 1,2‐diamines through the stereoselective functionalization of two vicinal C(sp3)─H bonds
Bing Zhou, Yuan Zheng, Xiulan Xie, Marcel Hemming, Sergei I. Ivlev, Eric Meggers   +5 more
wiley   +2 more sources

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Diastereomeric Amides Derived from Malonic Acid: the Role of Chiral Auxiliaries and of the Nature of Co-Acids in the Mixed Kolbe Electrolyses

Journal of the Brazilian Chemical Society, 1999
Experiments towards the diastereoselective coupling of new malonic acid amides synthesized with commercially available chiral amines [(S)-(+)-1-cyclohexylethylamine and (R)-(+)-1-phenylethylamine] as chiral auxiliaries were performed through Kolbe ...
Goulart Marília O.F., Schäfer Hans-Yürgen   +1 more
doaj  

Fragmentation of Vancoresmycin Reveals a Strong Dependence on Global Molecular Architecture for Antibacterial Activity

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Fragmentation of the natural product vancoresmycin reveals an essential role of global architecture for biological potency. Vancoresmycin is a structurally complex tetramic‐acid‐containing natural product with potent activity against Gram‐positive bacteria, yet its structure–activity relationships remain poorly defined.
Max Schönenbroicher, Florian Heppner, Maximilian Seul, Simon Morgenschweis, Aia Ali Abdelrahman, Eva Fahr, Niklas Holstein, Anna Müller, Dirk Menche   +8 more
wiley   +1 more source

Modular Synthesis of a Lignin Oligomer Library

ChemSusChem, Volume 19, Issue 15, 14 August 2026.
Bridging the gap between commercial lignin dimer models and actual polymeric lignin by the modular synthesis of a lignin oligomer library. We report a modular and scalable synthetic strategy for constructing a diverse library of oligomeric lignin model compounds (LMCs).
Eman Abdelraheem, Tom A. Ewing, Gijs van Erven, Fedor M. Miloserdov   +3 more
wiley   +1 more source

Flipping the Card With Enantiodivergent Organocatalysis

Chemistry – A European Journal, Volume 32, Issue 29, 7 August 2026.
This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre, Alessio Carioscia, Alessandro Brusa, Armando Carlone   +3 more
wiley   +1 more source