Results 1 to 10 of about 24,216 (244)
Visible light-promoted synthesis of 2-aryl-(3-organoselanyl)thieno[2,3-b]pyridines
Green Chemistry Letters and Reviews, 2022 We describe a simple and environment-friendly visible light-promoted protocol to access 2-aryl-(3-organoselanyl)thieno[2,3-b]pyridines, through the selenocyclization of 3-(arylethynyl)-2-(alkylthio)pyridines in the presence of diorganyl diselenides as ...
Ricardo Hellwig Bartz +5 more
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Frontiers in Chemistry, 2020 A concise and efficient photocatalytic C–C coupling of 1-benzyl-3-cyano-1, 4-dihydropyridine for synthesis of 1,1′-dibenzyl-3, 3′-dicyano-1,1′,4,4′-tetrahydro-4, 4′-bipyridine is described.
Shijun Chen +5 more
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Scientific Reports, 2022 In this study, we reported the ammonium metavanadate (NH4VO3) as an efficient, cost-effective, and mild catalyst for the synthesis of substituted pyridines via a one-pot pseudo four-component reaction.
Jamal Rahimi +6 more
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Sublimation/vaporization and solvation enthalpies of monosubstituted pyridine derivatives
Chemical Thermodynamics and Thermal Analysis, 2022 Different sectors, including medicine and display technology, utilize substituted pyridines. To establish the quality of products manufactured from pyridines, chemical thermodynamics of the solvation and evaporation enthalpies of the pyridines are ...
Rawand S. Abdullah, Boris N. Solomonov
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Regioselective C–H Activation of Substituted Pyridines and other Azines using Mg- and Zn-TMP-Bases
SynOpen, 2018 The metalation of substituted pyridines, diazines and related N-heterocycles using TMPMgCl·LiCl, TMP2Mg·2LiCl, TMPZnCl·LiCl or TMP2Zn·2LiCl2·2MgCl2 (TMP = 2,2,6,6-tetramethylpiperidyl) in the presence or absence of a Lewis acid is reviewed ...
Moritz Balkenhohl, Paul Knochel
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Communications Chemistry, 2023 Substituted pyridines with diverse functional groups are important structural motifs found in numerous bioactive molecules. Several methodologies for the introduction of various bio-relevant functional groups to pyridine have been reported, but there is ...
Kannan Vaithegi +4 more
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Synthesis of tetrahydrofuro[3,2-c]pyridines via Pictet–Spengler reaction
Beilstein Journal of Organic Chemistry, 2023 A semi-one-pot method for the synthesis of 4-substituted tetrahydrofuro[3,2-c]pyridines by the Pictet–Spengler reaction was developed. The method is based on the condensation of easily accessibly 2-(5-methylfuran-2-yl)ethanamine with commercially ...
Elena Y. Mendogralo, Maxim G. Uchuskin
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Журнал органічної та фармацевтичної хімії, 2023 The article describes a set of pyridines annulated with functionalized 6-membered saturated rings, which are attractive building blocks for the synthesis of diversified compound libraries in medical chemistry.
Dmytro V. Yehorov, Andrii I. Subota
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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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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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