Results 201 to 210 of about 23,873 (241)
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N-(?-ferrocenylalkyl) pyridinium salts
Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 19661. N- (α-Ferrocenylalkyl)pyridinium p-toluenesulfonates are formed when ferrocenylcarbinols are reacted with p-toluenesulfonyl chloride in pyridine. 2. The N-(α-ferrocenylalkyl)pyridinium salts are good ferrocenylalkylating agents.
A. N. Nesmeyanov +2 more
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Antimycobacterial Activity of Quaternary Pyridinium Salts and Pyridinium N-oxides - Review
Current Pharmaceutical Design, 2012The treatment of tuberculosis and other mycobacterioses is still a major world health problem and new antimycobacterial compounds unrelated to approved drugs are in demand. Quaternary ammonium salts have revealed many usable properties especially as antimicrobials; they are widely used as disinfection and antiseptic agents.
Martin, Krátký, Jarmila, Vinšová
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Pyridinium Salts as Organophosphate Antagonists
2015By a standard screening in vivo, a series of pyridinium salts were tested for their protective activity against organophosphate poisoning. In order to obtain information about the protective mechanisms, several biochemical properties of these compounds were investigated in vitro, viz., their influence upon the enzymes cholineacetyltransferase and ...
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Thiazolo [3,2‐a] pyridinium salts
Journal of Heterocyclic Chemistry, 1966AbstractThe sulfides formed by the reaction of α‐halo ketones or α‐halo acetals with 2‐mercaptopyridine may be cyclized in good yield to form thiazolo[3, 2‐a]pyridinium salts. The presence of chloro or nitro substituents on the pyridine ring does not interfere with the synthesis.
C. K. Bradsher, D. F. Lohr
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Hexahydrobenzothiazolo[3,2-a]pyridinium salts
Chemistry of Heterocyclic Compounds, 1988Salts of hexahydrobenzothiazolo[3,2-a]pyridine are obtained by exchange reactions. Anions are placed in the order [(NC)2CCHC(CN)2]- > ClO4−>I3−>Br− according to the ability to displace each other. X-ray structural and spectroscopic studies establish the cis-attachment of the thiazolidine and cyclohexane rings in the hexahydrobenzothiazolo [3,2-a ...
A. M. Shestopalov +6 more
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Oxidation of polysubstituted pyridinium salts
Collection of Czechoslovak Chemical Communications, 1982Oxidation of 1-substituted 2,4,6-triphenylpyridinium salts Ia-Ij with potassium ferricyanide in an alkaline medium was accompanied by contraction of the pyridine ring and formation of 1,2,3,5-tetrasubstituted pyrroles II. The derivative IIf underwent facile electrophilic substitution in the position 4. Contrary to compounds Ia-Ij, the 1-substituted-2,6-
Petr Nesvadba, Josef Kuthan
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Investigation of Methyl Pyridinium-2-aldoxime Salts
Journal of Pharmaceutical Sciences, 1961Methyl pyridinium-2-aldoxime iodide (2-PAM iodide) has been reported to be effective in preventing and overcoming the toxic effects in animals poisoned with organic phosphorus compounds that are inhibitors of the cholinesterase enzymes. In order to obtain greater water solubility of the oxime and to eliminate undesirable side effects due to the iodide ...
A A, KONDRITZER, R I, ELLIN, L J, EDBERG
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Iridium‐Catalyzed Asymmetric Hydrogenation of Pyridinium Salts
Angewandte Chemie International Edition, 2012As one of the most straightforward and powerful approaches for the preparation of optically active compounds, asymmetric hydrogenation has been successfully used for different types of aromatic compounds, including quinolines, isoquinolines, quinoxalines, indoles, pyrroles, furans, imidazoles, and aromatic carbocyclic ring, with excellent ...
Zhi-Shi, Ye +5 more
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Oxidation of reduced triphosphopyridine nucleotide by pyridinium salts
Archives of Biochemistry and Biophysics, 1967Abstract Certain substituted pyridinium salts are able to support oxidation of TPNH. Ferredoxin, ferredoxin-TPN reductase, and molecular oxygen are necessary. water rather than Peroxide is formed, as shown by the stoichiometry of the reaction. During the Reaction the pyridinium salts do not undergo Spectral changes.
P, Böger, A, San Pietro
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2012
Pyridinium salts, both molecular and polymeric, are an interesting class of multifunctional materials that exhibit liquid-crystalline and light-emitting properties. Moreover, their properties can be easily tuned by introducing new types of anions or by modifying their chemical structures.
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Pyridinium salts, both molecular and polymeric, are an interesting class of multifunctional materials that exhibit liquid-crystalline and light-emitting properties. Moreover, their properties can be easily tuned by introducing new types of anions or by modifying their chemical structures.
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