Results 131 to 140 of about 358,569 (255)
SYNTHESIS OF PYRIDINIUM SALTS VIA NOVEL OXIDATIVE C-H FUNCTIONALIZATION METHODS
Pyridinium salts are scaffolds of diverse biological and synthetic importance. Thesemolecules can serve as oxidants, ionic liquids, phase transfer catalysts, and can be used as synthetic intermediates in a variety of complex chemical reactions.
Motsch, Bill, 0000-0002-7322-2662
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Oxidation of 1,2,3,4,6-substituted pyridinium salts with ferricyanide
, 1984 Quaternary pyridinium salts IIa-IId are oxidized with alkaline solution of potassium ferricyanide to give a mixture of pyrrole derivatives Ia-Ib and IVa-IVd.
Josef Kuthan, Petr Nesvadba
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The Chemical Record, EarlyView.The transport properties and electrochemical reactivity of protic ionic liquids (ILs) are compared with those of aprotic analogs. Protic ILs are characterized by strong cation–anion hydrogen bonding and labile protons, enabling proton conduction and highlighting their potential as fuel cell electrolytes.
Masayoshi Watanabe, Seiji Tsuzuki
wiley +1 more source
N-Amino Pyridinium Salts in Organic Synthesis. [PDF]
Org Chem Front, 2023 Roychowdhury P +3 more
europepmc +1 more source
Benign by design: A paradigm shift in cosmetic ingredient development
International Journal of Cosmetic Science, EarlyView.Benign by design strategies enable the creation of biodegradable cosmetic ingredients, reducing environmental persistence while maintaining the intended biological activity. This work compiles design rules and tools to guide the development of more sustainable molecules for the cosmetics industry.
Sandra Mota +3 more
wiley +1 more source
Bromomalonate-Catalyzed Esterification of Alkyl Pyridinium Salts with Carboxylic Acids
, 2020 The coupling of a carboxylic acid and amine to form an amide bond is the most prevalent reaction used in drug discovery. As a result, a diverse array of carboxylic acid and amine containing reagents are readily available. We have developed a novel method
McGrath, Andrew, Shafiq, Khadija
core
Preparation of pyridinium salts of 2-furane derivatives
, 1984 Pyridinium salts have been prepared by nucleophilic substitution reaction of 5-halogeno-2-furane derivatives with pyridine and its 3- and 4-substituted derivatives, where R = 3-methyl, 3-ethyl, 3-amino, 3-methoxycarbonyl, 3-aminocarbonyl, 4-amino, 4 ...
Miroslav Kríž +2 more
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Photochemistry and Photobiology, EarlyView.Visible light photolysis of a N‐(N,N‐diarylaminopyridinium) salt allows for covalent modification of a peptide. Mass spectrometry demonstrates that this procedure selectively labels tryptophan residues. Laser flash photolysis experiments show that bond formation occurs via a diarylnitrenium ion intermediate.
Edward S. Chinn +3 more
wiley +1 more source
Comprehensive Physiology, Volume 16, Issue 4, August 2026.Selective purification of heart‐specific spinal and vagal sensory neurons by retrograde labeling and FACS purification showed enhanced spontaneous, optogenetic, and chemically stimulated Ca2+ activity. Transcriptomic profiling identified distinct ion channel and GPCR signatures in heart‐specific sensory neurons.
T. Akgul Caglar +8 more
wiley +1 more source
Ionic Liquid Crystals Based on Pyridinium Salts
, 2017 This chapter describes the liquid crystalline properties of the ionic liquid crystals (ILC) based on pyridinium salts as well as their metal-containing compounds with an emphasis on the recent systems described in literature.
V. Cîrcu
semanticscholar +1 more source