Results 21 to 30 of about 2,990 (181)
Molecules, 2013 An efficient approach for the synthesis of 3-substituted-3-hydroxy-2-oxindoles has been achieved via an aldol reaction of α,β-unsaturated ketones and isatins using arginine as an organocatalyst.
Tingting Yan +4 more
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Molecules, 2020 New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications.
Yogesh S. Tingare +5 more
doaj +1 more source
Frontiers in Chemistry, 2022 A short and efficient multicomponent sequence for synthesizing fused novel polyheterocyclic chromeno spiro-pyrrolidine oxindoles via 1,3-dipolar cycloaddition reaction mediated by reactive azomethine ylides catalyzed by the Graphene Oxide (GO) is ...
Vipin Singh +2 more
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Molecules, 2012 The enantioselective conjugate addition reaction of 3-aryl-substituted oxindoles with methyl vinyl ketone promoted by binaphthyl-modified bifunctional organocatalysts was investigated.
Saet Byeol Woo +2 more
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Molecules, 2018 Alkylidene oxindoles are important functional moieties and building blocks in pharmaceutical and synthetic chemistry. Our interest in biologically active compounds focused our studies on the synthesis of novel oxindoles, bearing on the exocyclic double ...
Boris Letribot +7 more
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Molecules, 2011 An efficient synthesis of functionalized spiropyrrolizidine oxindoles via a three-component tandem cycloaddition has been achieved. This strategy can provide direct and rapid access to spiropyrrolizidine oxindoles in high yields (up to 99%) with ...
Tai-Ran Kang +5 more
doaj +1 more source
Chemical and Pharmaceutical Bulletin, 1969 The thiation of methyl substituted oxindoles (I) with phosphorous pentasulfide gave the corresponding 2-indolinethiones (II). The 2-indolinethione (II) having more than one hydrogen at 3-position, however, were sensitive towards phosphorous pentasulfide to produce the indolic compounds such as III, IV, V and VI.
HINO, TOHRU +3 more
openaire +2 more sources
Investigating the Antifungal Effects of Spirocyclopropane Oxindoles Derivatives Against Aspergillus Species [PDF]
Research in Molecular Medicine, 2023 Background: Given the increasing resistance of Aspergillus spp. to azoles, finding effective new compounds, such as the spirocyclopropane oxindoles (4a-4b-4c) derivatives, seems necessary.
Amirreza Ardebilifard +8 more
doaj
Oxindoles and copper complexes with oxindole-derivatives as potential pharmacological agents [PDF]
Journal of the Brazilian Chemical Society, 2006 Oxindoles are endogenous compounds found in mammalian body fluids and tissues. Particularly, isatin (1H-indole-2,3-dione) and its derivatives have shown a variety of biological effects, including inhibition of monoamine oxidase, antibacterial, antifungal, antiviral and antiproliferative activities.
Cerchiaro, Giselle +1 more
openaire +3 more sources