Results 41 to 50 of about 73,933 (268)
Pyridinium dichlorophosphinomethylides
Heteroatom Chemistry, 2001 AbstractSeven new pyridinium dichlorophosphinomethylides 2 have been obtained from dichlorophosphinylation of the pyridinium methylides generated in situ. 2 give 1,3‐bis(alkoxycarbonyl)‐2‐phosphaindolizines 4 through 1,5‐electrocyclization of the intermediate, bis(pyridinium ylidyl)phosphenium chloride 3 which is generated either from ...
Raj K. Bansal +4 more
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4-(Ammoniomethyl)pyridinium dichloride [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title compound, C6H10N22+·2Cl−, contains a network of 4-(ammoniomethyl)pyridinium cations and chloride anions which are interconnected by N—H Cl hydrogen bonds. The crystal packing is also influenced by intermolecular π–π stacking interactions between identical antiparallel organic cations with a face-to-face distance of ca 3.52 Å.
Meher El Glaoui +4 more
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Stille Reaction on Pyridinium Cations. [PDF]
ChemInform, 2002 AbstractFor Abstract see ChemInform Abstract in Full Text.
García Cuadrado, Domingo +3 more
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Investigation of the Pyridinium Ylide—Alkyne Cycloaddition as a Fluorogenic Coupling Reaction
Molecules, 2016 The cycloaddition of pyridinium ylides with alkynes was investigated under mild conditions. A series of 13 pyridinium salts was prepared by alkylation of 4-substituted pyridines.
Simon Bonte +4 more
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A Three-Step Route to Functionalized Pyrrole-2,5-Dicarboxylic Acids from Galactaric Acid. [PDF]
ChemSusChemGalactaric acid (GalA) has been used as substrate for a library of N‐substituted pyrrole‐2,5‐dicarboxylic acids (PDCAs). Existing routes to N‐substituted PDCAs require many steps or lack product isolation. We present a simple, scalable three‐step synthesis from GalA via a 2‐pyrone salt, giving isolated PDCA derivatives in high yield without ...
Trapasso G +3 more
europepmc +2 more sources
Development of a novel, multifunctional, membrane-interactive pyridinium salt with potent anticancer activity [PDF]
The synthesis and biological evaluation of a novel pyridinium salt is reported. Initial membrane interaction with isolated phospholipid monolayers was obtained with the pyridinium salt, and two neutral analogues for comparison, and the anticancer effects
Dennison, Sarah Rachel +5 more
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Journal of Enzyme Inhibition and Medicinal Chemistry, 2023 A library of N-benzylpyridinium-based compounds, 7a-j and 8a-j, was designed and synthesised as potential acetylcholinesterase) AChE (inhibitors. An in vitro assay for the synthesised compounds showed that most compounds had significant AChE inhibitory ...
Nafisah M. Al-Rifai +4 more
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Pyridinium 4-(trifluoromethyl)benzenesulfonate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2009 The title salt, C(5)H(6)N(+)·C(7)H(4)F(3)O(3)S(-), is an ion pair in which the pyridium cation is linked to the 4-(trifluoro-meth-yl)benzene-sulfonate anion by an N-H⋯O hydrogen bond. The F atoms of the trifluoro-methyl group are disordered over two sites in a 0.584 (9):0.416 (9) ratio.
Gang Chen, Wei Xu, Zhen Yang, Zheng Fan
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The Atomistic Force Field for Pyridinium-Based Ionic Liquids: Reliable Transport Properties
, 2014 Reliable force field (FF) is a central issue in successful prediction of physical chemical properties via computer ...
Chaban, Vitaly V. +1 more
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2-(Benzoylaminomethyl)pyridinium chloride [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title compound, C(13)H(13)N(2)O(+)·Cl(-), (1), was obtained as a colorless crystalline by-product during the synthesis of N-(2-pyridylmeth-yl)benzoyl-amine (2). The C-O bond length of 1.231 (2) Å in the benzoyl unit of (1) is slightly elongated in comparison with isolated C=O double bonds as also observed for (2) [1.237 (2) Å].
Matthias Westerhausen +2 more
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