Results 11 to 20 of about 21,061 (224)

The use of pyridinium fluorochromate (PFC) supported on TriSyl silica gel for oxidation reactions [PDF]

Journal of the Serbian Chemical Society, 2007
Pyridinium fluorochromate supported on TriSyl silicas was prepared by co-adsorption. The supported reagent was used in equimolar quantity to oxidise some organic compounds with good yields and complete selectivity.
FATMA AYDIN, ERSAN TURUNC
doaj   +3 more sources

A concise access to bridged [2,2,1] bicyclic lactones with a quaternary stereocenter via stereospecific hydroformylation

Nature Communications, 2021
Enantiomeric bridged [2,2,1] bicyclic lactone skeletons and their ring-opening products are important scaffolds widely occurring in both pharmaceutics and biology active compounds.
Shuailong Li, Zhuangxing Li, Mingzheng Li, Lin He, Xumu Zhang, Hui Lv   +5 more
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SYNTHESIS AND INVESTIGATION OF MAO INHIBITORS: HYDRAZONES OF POTENTIAL BRAIN-SPECIFIC DELIVERY [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University, 1997
A series of 1-methyl-3-[N-(substituted benzalimino)carbamoyl] pyridinium iodide and their corresponding dihydropyridines were prepared by conventional methods.
Hassan Farag, Hoda Hassan, Nawal El-Koussi   +2 more
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Investigation of Experimental and In Silico Physicochemical Propertiesof Thiazole-Pyridinium Anti-Acetylcholinesterase Derivatives withPotential Anti-Alzheimer’s Activity [PDF]

Pharmaceutical Sciences, 2021
Background: Physicochemical properties play important role in fundamental issues likeabsorption and distribution of pharmaceuticals to the target tissue. This is particularly importantfor drugs acting in central nervous system (CNS).
Golaleh Ghotbi, Maryam Hamzeh-Mivehroud, Arezou Taghvimi, Soodabeh Davaran, Siavoush Dastmalchi   +4 more
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Hydrogen-bonding chain and dimer motifs in pyridinium and morpholinium hydrogen oxalate salts

Acta Crystallographica Section E: Crystallographic Communications, 2018
We present here three compounds consisting of pyridinium or morpholinium hydrogen oxalates, each displaying different hydrogen-bonding motifs, resulting in chains for 4-(dimethylamino)pyridinium hydrogen oxalate 0.22-hydrate, C7H11N2+·C2HO4−·0.22H2O (1),
David Z. T. Mulrooney, Eimear C. Madden, Rhona F. Lonergan, Valentyna D. Slyusarchuk, Helge Müller-Bunz, Tony D. Keene   +5 more
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PART 1: DESIGN, SYNTHESIS AND EVALUATION OF NEW SITE-SPECIFIC MONOAMINE OXIDASE INHIBITORS [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University, 1998
Certain new monoamine oxidase inhibitors (MAOIs) containing a pyridinium moiety as an integral part of their structures (Q) were designed. The quaternaries, their corresponding 1,4-dihydroxypyridine derivatives (CDS) and their parent pyridine compounds ...
N. Bodor, H. Farag, P. Khashaba, N. El-Rabbat, F. Mohamed   +4 more
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Organic–inorganic hybrid mixed-halide ZnII and CdII tetrahalometallates with the 2-methylimidazo[1,5-a]pyridinium cation

Acta Crystallographica Section E: Crystallographic Communications, 2022
Three isomorphous 0-D hybrid salts, namely, 2-methylimidazo[1,5-a]pyridinium trichloridoiodidozincate(II), (C8H9N2)2[ZnCl3.19I0.81] or [L]2[ZnCl3.19I0.81], (I), 2-methylimidazo[1,5-a]pyridinium dibromidodichloridocadmate(II), (C8H9N2)2[CdBr2.42Cl1.58] or
Olga Yu. Vassilyeva, Elena A. Buvaylo, Vladimir N. Kokozay, Brian W. Skelton   +3 more
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Novel amphiphilic pyridinium ionic liquids-supported Schiff bases: ultrasound assisted synthesis, molecular docking and anticancer evaluation

Chemistry Central Journal, 2018
Background Pyridinium Schiff bases and ionic liquids have attracted increasing interest in medicinal chemistry. Results A library of 32 cationic fluorinated pyridinium hydrazone-based amphiphiles tethering fluorinated counteranions was synthesized by ...
Fawzia Faleh Al-Blewi, Nadjet Rezki, Salsabeel Abdullah Al-Sodies, Sanaa K. Bardaweel, Dima A. Sabbah, Mouslim Messali, Mohamed Reda Aouad   +6 more
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Design and synthesis of novel bis-pyridinium based-ionic liquids as potent antiparasitic agents

Heliyon, 2023
Focused bis-pyridinium based-ionic liquids were successfully synthesized through the quaternization of the selected 1,2-di(pyridin-4-yl)ethane followed by metathetical anion exchange.
Esraa Abdelhamid Moneer, Basant A. Bakr, Sara H. Akl, Yahya H. Shahin, Bassma H. Elwakil, Mohamed Hagar, Keshav Raj Paudel, Ateyatallah Aljuhani, Mohamed Reda Aouad, Nadjet Rezki   +9 more
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Antimicrobial activities of pyridinium-tailored pyrazoles bearing 1,3,4-oxadiazole scaffolds

Journal of Saudi Chemical Society, 2017
Herein, a series of pyridinium-tailored 5-trifluoromethylpyrazoles containing 1,3,4-oxadiazole moieties were constructed through coupling key pharmaceutical fragments of pyridinium, pyrazole, and 1,3,4-oxadiazole scaffolds in single molecular ...
Lei Zhou, Pei-Yi Wang, Jian Zhou, Wu-Bin Shao, He-Shu Fang, Zhi-Bing Wu, Song Yang   +6 more
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