Results 61 to 70 of about 47,136 (264)

Low viscosity, high concentration pyridinium anolytes for organic non-aqueous redox flow batteries

, 2023
The ability to tune various physicochemical and electrochemical properties of redox-active organic molecules (ROMs) independently from one-another has been a long-standing goal of researchers attempting to design active materials for redox flow batteries
Thomas, Guarr, Dominik, Servinski, David, Hickey, Sharmila, Samaroo, Davarius, Carter, Annabelle, Pattillo, William, Kruper   +6 more
core   +1 more source

Discovery of Quinazolone Pyridiniums as Potential Broad-Spectrum Antibacterial Agents

Molecules
The overprescription of antibiotics in medicine and agriculture has accelerated the development and spread of antibiotic resistance in bacteria, which severely limits the arsenal available to clinicians for treating bacterial infections.
Jie Dai, Qianyue Li, Ziyi Li, Zhonglin Zang, Yan Luo, Chenghe Zhou   +5 more
doaj   +1 more source

A rare positively charged nicotinic acid disulfide: 2,2′-dithiodinicotinic acid hydrochloride monohydrate

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound {systematic name: 3-carboxy-2-[2-(3-carboxypyridin-2-yl)disulfan-1-yl)]pyridin-1-ium chloride monohydrate}, C12H9N2O4S2+·Cl−·H2O, crystallizes in the triclinic space group P\overline{1}.
Alexander T. Chemey, Chad M. McGuire, Thomas E. Albrecht-Schmitt   +2 more
doaj   +1 more source

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, Neelima Gupta, Mukta Baweja, Leena Hemrajani, Vimal K. Jain   +4 more
openaire   +1 more source

Funktionalisierung von Peptiden auf der festen Phase im späten Synthesestadium

Angewandte Chemie, EarlyView.
Peptidmodifikationen sind für die Kontrolle der Eigenschaften von Peptidwirkstoffen von entscheidender Bedeutung. Daher sind Strategien, die einen effizienten und schnellen Einbau nicht‐kanonischer Modifikationen in Peptide in Parallelformaten ermöglichen, sehr gefragt.
Marius Werner, Truc Lam Pham, Franziska Thomas   +2 more
wiley   +1 more source

Crystal structure of pyridinium tetraisothiocyanatodipyridinechromium(III) pyridine monosolvate

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the crystal structure of the title compound, (C5H6N)[Cr(NCS)4(C5H5N)2]·C5H5N, the CrIII ions are octahedrally coordinated by four N-bonding thiocyanate anions and two pyridine ligands into discrete negatively charged complexes, with the CrIII ion, as ...
Tristan Neumann, Inke Jess, Christian Näther   +2 more
doaj   +1 more source

Highly Electron-Deficient Pyridinium-Nitrones for Rapid and Tunable Inverse-Electron-Demand Strain-Promoted Alkyne-Nitrone Cycloaddition to Bicyclo[6.1.0]nonyne

, 2019
Highly accelerated inverse-electron-demand strain-promoted alkyne-nitrone cycloaddition (IED SPANC) between a sta- ble cyclooctyne (bicyclo[6.1.0]nonyne (BCN)) and nitrones delocalized into a Cα-pyridinium functionality is reported, with the ...
Alexander M., Polgar, Praveen, Gunawardene, Wilson, Luo, Mark, Workentin, John F., Corrigan   +4 more
core   +1 more source

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

, 2010
In the structure of the title salt, 2C12H10N 3O4 +·C12H8O 6S2 2-·3H2O, determined at 173 K, the biphenyl-4,4′-disulfonate dianions lie across crystallographic inversion centres with the sulfonate groups inter-acting head-to-head through centrosymmetric ...
Young, David J, Smith, Graham, Wermuth, Urs D., Wermuth, U D, Young, David J., Young, David James, Smith, G, D. Wermuth, Urs, Wermuth, Urs D, Young, David   +9 more
core   +1 more source

3-(Ammoniomethyl)pyridinium dibromide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title salt, C(6)H(10)N(2) (2+)·2Br(-), the non-H atoms of the 3-methyl-pyridinium unit of the cation are almost coplanar (r.m.s. deviation = 0.0052 Å). In the crystal, the dications and Br anions are linked by a combination of six hydrogen bonds, viz.
Ali, Basem F., Al-Far, Rawhi, Haddad, Salim F.   +2 more
openaire   +2 more sources

Pyridinium ylids in heterocyclic synthesis

, 2011
Pyridinium ylids are versatile tools in organic synthesis. The stability of pyridinium ylids and their generation is commented. This review gives an overview of the possible modes through which pyridinium ylids can react.
Jan Jacobs, Eva Van Hende, De Kimpe, Norbert, Sven Claessens, Van Hende, Eva, Norbert De Kimpe, Jacobs, Jan, Claessens, Sven   +7 more
core   +1 more source