Results 121 to 130 of about 16,017 (235)

High‐Energy‐Density Redox Flow Batteries: Mechanisms, Design Strategies, and Recent Progress

Chemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.
ABSTRACT The inherent intermittency of energy sources such as solar and wind power hinders the transition to renewable energy, necessitating advanced energy storage solutions. Enhancing energy density is crucial for lowering system costs and enabling large‐scale deployment.
Xiaolian Zhao, Jiaxin Yu, Nannan Jia, Chuzhang Hong, Yue Luo, Wantong Jing, Zhiming Feng, Xinhua Liu, Rui Tan   +8 more
wiley   +1 more source

Synthesis, Structure, and Aggregation-Induced Emission of a Novel Lambda (Λ)-Shaped Pyridinium Salt Based on Tröger's Base

, 2016
A novel Λ-shaped pyridinium salt 2,8-(6H,12H-5,11-methanodibenzo[b,f]diazocineylene)-di(p-ethenyl-N-methyl-pyridinium) ditosylate (abbreviated as DMDPS) based on Tröger's base was designed, synthesized and characterized.
Jia-Xiang Yang (2258011), Chun-Xue Yuan (2379097), Lei Wang (6656), Yan Ren (149348), Min-Hua Jiang (2379100), Yang Li (7082), Xu-Tang Tao (1527586), Wen-Tao Yu (2423305)   +7 more
core   +1 more source

Synthesis of 2‐Aza‐Bicyclo[4.3.0]nonane Derivatives Related to the Camporidines via Intramolecular [3+2]‐Cycloaddition

European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher, Tobias Wilczek, Nora Katharina Korber, Jörg-Martin Neudörfl, Bernd Goldfuss, Hans-Günther Schmalz   +5 more
wiley   +1 more source

Site‐Selective Functionalization of Cysteine Units in Peptides Through Meerwein Arylation Reactions Under Mild Conditions

Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.
α‐Methylstyrenes are known as highly efficient scavengers for aryl radicals. Herein, a bifunctional reagent is introduced that merges a 2‐bromoacyl moiety for thiol coupling with a styrene unit for subsequent radical functionalization. The sequential transformations proceed under mild conditions, enabling selective cysteine modification in peptidic ...
Daniel R. Troeger, Nina Diesendorf, Ryan Thurston, Markus R. Heinrich   +3 more
wiley   +1 more source

Redox‐Active Guanidines

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley   +1 more source

Aminopentadiene Imines from Zincke Salts of 3-Alkylpyridines. Application to a Synthesis of Pyridinium Salts from Amino Acids

, 2016
The reaction of Zincke salts with primary amines to give pyridinium salts generally requires rather elevated temperature to go to completion (50−100 °C).
Tuan Minh Nguyen (2022886), Christian Marazano (2254477), Maria del Rayo Sanchez-Salvatori (2483941), Jean-Charles Wypych (2330635)   +3 more
core   +1 more source

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

European 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, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Estudos de fluorescência de corantes solvatocrômicos [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.As propriedades espectroscópicas dos corantes solvatocrômicos têm sido estudados extensivamente nos últimos anos, devido às suas inúmeras aplicações
Cavalli, Viviane
core  

Phosphine Oxide Containing Poly(pyridinium salt)s as Fire Retardant Materials. [PDF]

Polymers (Basel), 2019
Alam MM, Biswas B, Nedeltchev AK, Han H, Ranasinghe AD, Bhowmik PK, Goswami K.   +6 more
europepmc   +1 more source

Correction to "Methanolysis of the Cyclic Acetal Function of NanoKid Catalyzed by NanoGoblin, the Pyridinium Salt of Tetracyanocyclopentadienide". [PDF]

ACS Omega, 2017
Sakai T, Nagao Y, Nakamura Y, Mori Y.
europepmc   +1 more source