Results 1 to 10 of about 14,873 (166)
Synthesis and biological activity study of tanshinone I-pyridinium salt derivatives [PDF]
Natural Products and BioprospectingNatural product tanshinone I exhibits weak potency and poor drug-like properties, which have restricted its clinical development as an anticancer agent.
Huimin Zhao +9 more
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2-(1-Methoxycarbonyl-2-phenyleth-1-yl)-1-benzylpyridin-1-ium Bromide
Molbank, 2023 In this work, we report the unexpected conversion of a pyridine derivative into the corresponding N-benzylated pyridinium salt due to the presence of unreacted benzyl bromide in the crude product. This transformation was observed at room temperature in a
Lorenzo Suigo +2 more
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Scientific Reports, 2023 Under conventional and silica-supported Muffle furnace methods, water-soluble substituted trimeric triaryl pyridinium cations with various inorganic counter anions are synthesized.
Ramalingam Tamilarasan +11 more
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Pyridinium Salts of Dehydrated Lanthanide Polychlorides
Molecules, 2022 The reaction of lanthanide (Ln) chloride hydrates ([Ln(H2O)n(Cl)3]) with pyridine (py) yielded a set of dehydrated pyridinium (py-H) Ln-polychloride salts. These species were crystallographically characterized as [[py-H-py][py-H]2[LnCl6]] (Ln-6; Ln = La, Ce, Pr, Nd, Sm, Eu, Gd) or [[py-H]2[LnCl5(py)]] ((Ln-5; Ln = Tb, Dy, Ho, Er, Tm, Yb, Lu).
Roger E. Cramer +2 more
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On the photochemical reaction of pyridinium salts with nucleophiles [PDF]
Photochemical & Photobiological Sciences, 2021 AbstractDFT calculations on the photochemical reaction of 1-n–N-butylpyridinium salt in water with hydroxide anion is in agreement with a singlet state process where the S2 state at λ = 253 nm can be converted into a Dewar isomer (2-butyl-2-azabicyclo[2.2.0]hexa-2,5-dien-2-yl cation).
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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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Ultrathin positively charged electrode skin for durable anion-intercalation battery chemistries
Nature Communications, 2023 The application of graphite as anodes for anion-intercalation chemistry-based batteries suffers from durability issues. Here authors demonstrate that a positively charged two-dimensional poly(pyridinium salt) membrane can work as the artificial skin of ...
Davood Sabaghi +17 more
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Quaternary Pyridinium Salts: A Review
Journal of Oleo Science, 2008 Cationic surfactants are being used in various applications industrially and domestically for a long time. Pyridinium salts come under the category of cationic surfactants. These are unsaturated heterocyclic compounds having different functional groups present either on pyridine ring or at nitrogen atom.
Madaan, Parag, Tyagi, Vinod K.
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4-[(Adamantan-1-yl)carbamoyl]pyridinium chloride
Acta Crystallographica Section E, 2012 In the title salt, C16H21N2O+·Cl−, the amide group makes a dihedral angle of 24.98 (2)° with respect to the pyridinium ring.
Ying-Chun Wang
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Synthesis compounds of Thiopyran Pyridinium Perchlorate and studing its Bioactivity: Part1. [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 A synthesis Four Pyridinium perchlorate Compounds from reaction one mole pyrylium salt (product already) with one mole 2-Aminoethylenethiol in room temp.
Marwan Mohammed Farhan
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