Results 11 to 20 of about 97,046 (344)
Semisynthesis of 6β-Acetoxyvouacapane Derivatives via the Ugi-Azide Multicomponent Reaction
Chemistry Proceedings, 2022 A semisynthesis of 6β-acetoxyvouacapane-1,5-disusbtituted tetrazoles derivatives from the leaves of Caesalpinia platyloba by using the Ugi-azide multicomponent reaction as a key step reaction is described. To our knowledge, this is the first report where
Gabriela Servín-García +7 more
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Multicomponent Reactions [PDF]
Molecules, 2019 Multicomponent Reactions appear to be ideal for any form of synthesis, because of their numerous advantages in terms of sustainability and selectivity in building up complex molecular architectures, with high molecular diversity. This Special Issue collects seven contributions which expand our knowledge about Multicomponent Reactions, providing a good ...
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One-pot multicomponent synthesis of 2,3-dihydropyrans: new access to furanose–pyranose 1,3-C–C-linked-disaccharides [PDF]
, 2009 An efficient synthesis of 2,3-dihydropyrans starting from different terminal alkynes was developed. The 2,3-dihydropyrans were obtained in a few minutes through a microwave-assisted multicomponent enyne cross-metathesis/hetero-Diels–Alder reaction ...
Armstrong +28 more
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From sequence-defined macromolecules to macromolecular pin codes [PDF]
, 2020 Dynamic sequence-defined oligomers carrying a chemically written pin code are obtained through a strategy combining multicomponent reactions with the thermoreversible addition of 1,2,4-triazoline-3,5-diones (TADs) to indole substrates.
Badi, Nezha +4 more
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Multicomponent reactions II [PDF]
Beilstein Journal of Organic Chemistry, 2014 The concept of multicomponent reactions (MCR) [1] has been around in organic chemistry since the very early days. Indeed, the first example known in literature, the Strecker synthesis of α-aminonitriles [2], has been developed into an industrial process for the production of methionine in an annual scale of several hundreds of thousand tons per year ...
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The evaluation of chemoselectivity in multicomponent domino Knoevenagel/Diels-Alder reaction: A DFT study [PDF]
Journal of the Serbian Chemical Society, 2021 Herein, the chemoselectivity of the multicomponent domino Knoevenagel/ Diels–Alder reaction is investigated in terms of theoretical calculations. The structures of reagents, transition states, intermediates and products are optimized at the M062X/6-31+G ...
Attarbashi Mina +2 more
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Molbank, 2017 A new compound belonging to the “heterostilbene” derivative, namely ethyl (E)-4-(2,4-dimethoxyphenyl)-6-(2,4-dimethoxystyryl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (2), has been successfully synthesized as an unprecedented side product of the ...
Hery Suwito +6 more
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A Microfluidics Reaction System with Automation for a Multicomponent Reaction
Advanced Intelligent Systems, 2020 A multicomponent reaction is established toward quinazolimine derivatives, but it requires intensive human interventions in conventional reaction systems to suppress the side reactions. Herein, an automated microfluidics‐based reaction system that uses a
Xinlong Pang, Haoran Zhao, Shaohua Ma
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Well-posedness analysis of multicomponent incompressible flow models [PDF]
, 2020 In this paper, we extend our study of mass transport in multicomponent isothermal fluids to the incompressible case. For a mixture, incompressibility is defined as the independence of average volume on pressure, and a weighted sum of the partial mass ...
Bothe, Dieter, Druet, Pierre-Etienne
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Catalyzed and non-catalyzed synthesis of bioactive monastrol
Química Nova, 2014 The bioactive 3,4-dihydropyrimidin-2(1H)-thione derivative known as Monastrol was synthesized under catalyzed and non-catalyzed conditions through the Biginelli multicomponent reaction under solvent-free conditions.
Haline G. O. Alvim +4 more
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