Results 11 to 20 of about 49,888 (203)
One-step synthesis of pyridines and dihydropyridines in a continuous flow microwave reactor [PDF]
, 2013 The Bohlmann–Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann–Rahtz reaction, the use
Bagley, Mark C +4 more
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Fast microwave-assisted oxidation of 1,4-dihydropyridines with FeCl 3.SiO 2 [PDF]
, 2005 Pyridine derivatives are easily obtained in high yields by microwave-promoted rapid oxidation of the corresponding 1,4-dihydropyridines with ferric chloride hexahydrate and silica gel under solvent-free ...
Alaee, E. +4 more
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Molecules, 2021 Recently, the development of nanocatalysts based on naturally occurring polysaccharides has received a lot of attention. Chitosan (CS), as a biodegradable and biocompatible polysaccharide, is considered to be an excellent template for the design of a ...
Khaled D. Khalil +4 more
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Degradation of lansoprazole and omeprazole in the aquatic environment [PDF]
, 2006 Lansoprazole and omeprazole degrade in water leading to sulfides, benzimidazolones and a red complex material. Degradation is accelerated in acid medium and by solar simulator irradiation.
BRIGANTE M. +5 more
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Acta Crystallographica Section E Structure Reports Online, 2010 The non-H atoms of the title compound, C(6)H(8)N(2), lie in a common plane (r.m.s. deviation = 0.034 Å). In the crystal, adjacent mol-ecules are linked by inter-molecular N-H⋯N hydrogen bonds into a zigzag chain running along the c axis.
openaire +3 more sources
Organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium or azolium enolates [PDF]
, 2014 This tutorial review highlights the organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium/azolium enolates.
Morrill, Louis C., Smith, Andrew D.
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Quaterpyridine Ligands for Panchromatic Ru(II) Dye Sensitizers [PDF]
, 2012 A new general synthetic access to carboxylated quaterpyridines (qpy), of interest as ligands for panchromatic dyesensitized solar cell organometallic sensitizers, is presented.
Abbotto, Alessandro +6 more
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Highly enantioselective catalytic synthesis of chiral pyridines
Nature Communications, 2017 Chiral pyridines are valuable building blocks in medicinal chemistry applications. Here, the authors report the copper-catalysed Lewis acid-assisted asymmetric alkylation of β-substituted alkenyl pyridines with Grignard reagents affording chiral ...
Ravindra P. Jumde +3 more
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Molecules, 2022 Pyridine, 1,3,4-thiadiazole, and 1,3-thiazole derivatives have various biological activities, such as antimicrobial, analgesic, anticonvulsant, and antitubercular, as well as other anticipated biological properties, including anticancer activity.
Amr S. Abouzied +7 more
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[2,2′-Bipyridin]-6(1H)-one, a Truly Cooperating Ligand in the Palladium-Mediated C–H Activation Step: Experimental Evidence in the Direct C-3 Arylation of Pyridine [PDF]
, 2018 Producción CientíficaThe ligand [2,2′-bipyridin]-6(1H)-one (bipy-6-OH) has a strong accelerating effect on the Pd- catalyzed direct arylation of pyridine or arenes.
Albéniz Jiménez, Ana Carmen +2 more
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