Results 11 to 20 of about 16,017 (235)

A Synthetic Route to Quaternary Pyridinium Salt-Functionalized Silsesquioxanes [PDF]

International Journal of Polymer Science, 2012
A synthetic route to potentially biocidal silsesquioxanes functionalized by quaternary pyridinium functionalities has been developed. N-Alkylation reactions of the precursor compounds 4-(2-(trimethoxysilyl)ethyl)-pyridine (5) and 4-(2-trichloro ...
Nataliya Kostenko, Jochen Gottfriedsen, Liane Hilfert, Frank T. Edelmann   +3 more
doaj   +2 more sources

Synthesis of a New Bioconjugate Steroid Pyridinium Salt Derived from Allopregnanolone Acetate

Molbank
Because allopregnanolone and derivatives represent biologically active molecules, in this letter, we present the synthesis of a new bioconjugate steroid pyridinium salt derived from allopregnanolone in three steps.
Hisami Rodríguez-Matsui, J. Luis Sánchez-Juárez, Vladimir Carranza-Téllez, Joel L. Terán, Jesús Sandoval-Ramirez, Alan Carrasco-Carballo   +5 more
doaj   +2 more sources

Pyridinium tosylate

IUCrData
The title compound (systematic name: pyridinium 4-methylbenzenesulfonate), C5H6N+·C7H7O3S−, is the pyridinium salt of para-toluenesulfonic acid. In the crystal, classical N—H...O hydrogen bonds as well as C—H...O contacts connect the cationic and anionic
Eric Cyriel Hosten, Richard Betz
doaj   +2 more sources

Synthesis and crystal structure of a new pyridinium bromide salt: 4-methyl-1-(3-phenoxypropyl)pyridinium bromide [PDF]

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the cation of the title molecular salt, C15H18NO+·Br−, the pyridinium and phenyl rings are inclined to one another by 11.80 (8)°. In the crystal, the Br− anion is linked to the cation by a C—H...Br hydrogen bond.
Musa A. Said, Mohamed R. Aouad, David L. Hughes, Meshal A. Almehmadi, Mouslim Messali   +4 more
doaj   +2 more sources

Bis[2-(2,4-dinitrobenzyl)pyridinium] biphenyl-4,4′-disulfonate trihydrate

Acta Crystallographica Section E, 2010
In the structure of the title salt, 2C12H10N3O4+·C12H8O6S22−·3H2O, determined at 173 K, the biphenyl-4,4′-disulfonate dianions lie across crystallographic inversion centres with the sulfonate groups ...
Graham Smith, Urs D. Wermuth, David J. Young   +2 more
doaj   +2 more sources

Fluorescent Imidazo[1,5-a]pyridinium Salt for a Potential Cancer Therapy Agent. [PDF]

ACS Med Chem Lett, 2019
N,N′-Dimethylated imidazo­[1,5-a]­pyridinium salt having good water solubility and exhibiting fluorescence emission was found to work as not only a bioimaging agent but also a therapeutic agent under UVA-LED irradiation conditions. Because the continuous
Yagishita F, Tanigawa JI, Nii C, Tabata A, Nagamune H, Takanari H, Imada Y, Kawamura Y.   +7 more
europepmc   +2 more sources

Pyridinium 1,1′-Binaphthyl-2,2′-disulfonates as Highly Effective Chiral Brønsted Acid−Base Combined Salt Catalysts for Enantioselective Mannich-Type Reaction

, 2016
Pyridinium 1,1′-Binaphthyl-2,2′-disulfonates as Highly Effective Chiral Brønsted Acid−Base Combined Salt Catalysts for Enantioselective Mannich-Type ...
Manabu Hatano (1499794), Manabu Arinobe (2354320), Kazuaki Ishihara (1457665), Toshikatsu Maki (1825753), Katsuhiko Moriyama (1418254)   +4 more
core   +5 more sources

Grafted ionomer complexes and their effect on protein adsorption on silica and polysulfone surfaces [PDF]

, 2010
peer reviewedWe have studied the formation and the stability of ionomer complexes from grafted copolymers (GICs) in solution and the influence of GIC coatings on the adsorption of the proteins beta-lactoglobulin (beta-lac), bovine serum albumin (BSA ...
Arie de Keizer, Stuart, M.A.C., Cohen Stuart, Martien A., Brzozowska, Agata M., Norde, Willem, Christophe Detrembleur, Detrembleur, Christophe, Agata M. Brzozowska, Willem Norde, de Keizer, Arie, Keizer, A., de, Norde, W., Brzozowska, A.M., Detrembleur, C., Martien A. Cohen Stuart, de Keizer, A., Stuart, Martien A. Cohen   +16 more
core   +1 more source

Combining photochemical transformation of pyridinium salt with kinetic enzymatic resolution towards the total synthesis of (-)-agelastatin A

, 2022
Agelastatin alkaloids were synthesized through early-stage construction of the synthetically challenging C ring via photochemical transformation of pyridinium salts.
João Rafael, Vale, Késsia, Andrade, Carlos Alberto, Mateus Afonso, Milene, Fortunato, Filipa, Siopa   +4 more
core   +1 more source

4-{(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl}-1-methylpyridin-1-ium iodide

IUCrData, 2016
The title molecular salt, C18H21N2+·I−, consists of a pyridinium cation and an I− anion. The cation exists in an E,E conformation with respect to the two C=C double bonds, and is roughly planar with the pyridinium ring being inclined to the benzene ring ...
S. John Sundaram, P. Sagayaraj, A. Antony Raj, E. R. A. Dravida Thendral, G. Usha   +4 more
doaj   +1 more source