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Base-Free C-N Cross-Electrophile Coupling. [PDF]
J Am Chem SocSamanta S +4 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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Infrared spectra of pyridinium salts in solution—III. Associations of pyridinium salts with bases
Spectrochimica Acta Part A: Molecular Spectroscopy, 1983Associations of pyridinium salts X-Py+HA− (A− = SbCl−6, ClO−4, BF−4, I−, Br− and Cl−) with a wide series of aprotic bases and with protic solvents (water and fluoroalcohols) have been studied by infrared spectroscopic methods. Constants of association Ka of the pyridinium salts with the bases at different temperatures have been measured and enthalpy ...
S.E. Odinokov +2 more
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The synthetic potential of pyridinium salt photochemistry
Photochemical & Photobiological Sciences, 2008The discovery in the 1970s by Kaplan, Wilzbach and Pavlik that pyridinium salts undergo a unique cyclization reaction to produce bicyclic-aziridines was virtually unrecognized for nearly three decades. It was only comparatively recently that the process was explored in more detail and its synthetic potential exploited.
Jiwen, Zou, Patrick S, Mariano
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Journal of the Chemical Society C: Organic, 1969
Attempts to synthesise thiazolo[3,4-a]pyridinium salts (3) and isothiazolo[2,3-a]pyridinium salts (2) by dehydration with boiling acetic anhydride of the 5,6,7,8-tetrahydro-8-oxothiazolo[3,4-a]pyridinium salts (11) and (12) and of the 4,5,6,7-tetrahydro-4-oxoisothiazolo[2,3-a]pyridinium salt (6) respectively are reported. The reasons for the failure of
D. G. Jones, Gurnos Jones
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Attempts to synthesise thiazolo[3,4-a]pyridinium salts (3) and isothiazolo[2,3-a]pyridinium salts (2) by dehydration with boiling acetic anhydride of the 5,6,7,8-tetrahydro-8-oxothiazolo[3,4-a]pyridinium salts (11) and (12) and of the 4,5,6,7-tetrahydro-4-oxoisothiazolo[2,3-a]pyridinium salt (6) respectively are reported. The reasons for the failure of
D. G. Jones, Gurnos Jones
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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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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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Recyclization of polysubstituted pyridinium salts
Tetrahedron, 1995Abstract 3,5-Diacetyl- and 3,5-dicyano-1,2,6-trimethylpvridinium perchlorates are converted by recyclization into N,5-dimethylanilines and 2-methylaminopyridines, respectively.
Galina P. Shkil +3 more
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