Results 21 to 30 of about 620,439 (167)

Convenient Synthesis of 3,4-Dichloro-5-hydroxy-2(5H)-Furanone Glycoconjugates

open access: yesMolecules, 2011
3,4-Dichloro-5-hydroxy-2(5H)-furanone treated with methyl chloroformate in the presence of diisopropylethylamine (Hünig’s base) gave the corresponding carbonate. The labile methoxycarbonyloxy group smoothly undergoes substitution by amino alcohols.
Edyta Gondela, Krzysztof Z. Walczak
doaj   +1 more source

Side-chain Modifications of Highly Functionalized 3(2H)-Furanones

open access: yesMolecules, 2012
A series of 3(2H)-furanones, based on side-chain modifications of a parent 3(2H)-furanone, was synthesized in good yield. The parent compound was prepared by hydrogenolysis, and subsequent acid hydrolysis, of isoxazole derivatives.
Gil Valdo José da Silva   +3 more
doaj   +1 more source

THE SYNTHESIS OF (5-HYDROXY-5-(1-METHOXYPROPAN-2-YL) -4-METHYLFURAN-2(5H)-ONE, 5-(1-METHOXYPROPAN-2-YL) -4-METHYLFURAN-2(5H)-ONE) AND BIOLOGICAL ACTIVITY

open access: yesJournal of Fundamental and Applied Sciences, 2015
Butenolides are a class of lactones with a four carbon heterocyclic ring structure.  They are sometimes considered as oxidized derivatives of furan. The simplest butenolide is 2-furanone, which is a common component of larger natural products and is ...
N. Gherraf, N. Tamma
doaj   +1 more source

Oxidation of Chiral 2(5H)-Furanone Bis-Thioethers to Disulfoxides

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2023
Novel disulfinyl derivatives based on 3,4-dichloro-2(5H)-furanone, aliphatic dithiols, and monoterpene alcohols were synthesized. Chiral bis-thioethers in the molecules of which the dithiol fragment links two five-membered cycles at C4 atoms were ...
A. M. Khabibrakhmanova   +5 more
doaj   +1 more source

Data_Sheet_1_Ascorbic acid modulates the structure of the Pseudomonas aeruginosa virulence factor pyocyanin and ascorbic acid-furanone-30 combination facilitate biofilm disruption.PDF

open access: yes, 2023
The production of pyocyanin by Pseudomonas aeruginosa increases its virulence, fitness and biofilm formation. Pyocyanin is also a redox molecule and we hypothesize that ascorbic acid being an antioxidant will interact with pyocyanin.
Basmah Almohaywi (16538499)   +17 more
core   +1 more source

Anti-phytopathogenic Bacterial Metabolites From the Seaweed-Derived Fungus Aspergillus sp. D40

open access: yesFrontiers in Marine Science, 2020
In order to search for new lead compounds with anti-phytopathogenic bacterial activity, three pairs of new furanone derivatives, sclerotiorumins D–F (1–3), and eight known compounds (4–11) were isolated from the seaweed-derived fungus, Aspergillus sp ...
Rui-Huan Huang   +10 more
doaj   +1 more source

Diphenyl-Furanones and Diphenyl-Oxopyrrole Derivatives: From Analytical Reagents for Amino Groups to New Fluorochromes for Cytochemical Staining of Chromatin DNA and Chromosomes: Proposal for Intercalative Binding and Fluorescence Mechanism

open access: yesColorants, 2023
Diaryl-furanones are specific analytical reagents for the biochemical detection of primary amines by fluorescence techniques. Well-known reagents are fluorescamine (Fluram) and 2-methoxy-2,4-diphenyl-3(2H)-furanone (MDPF), yielding fluorescent products ...
Juan C. Stockert   +3 more
doaj   +1 more source

Model Substrate/Inactivation Reactions for MoaA and Ribonucleotide Reductases: Loss of Bromo, Chloro, or Tosylate Groups from C2 of 1,5-Dideoxyhomoribofuranoses upon Generation of an α-Oxy Radical at C3

open access: yesMolecules, 2020
We report studies on radical-initiated fragmentations of model 1,5-dideoxyhomoribofuranose derivatives with bromo, chloro, and tosyloxy substituents on C2.
Stanislaw F. Wnuk   +3 more
doaj   +1 more source

Pestalafuranones F–J, Five New Furanone Analogues from the Endophytic Fungus Nigrospora sp. BM-2

open access: yesMolecules, 2014
Five new 2(5H)-furanone-type derivatives, pestalafuranones F–J (compounds 3–7), together with two known compounds, pestalafuranones A (1) and B (2), were isolated from the ethyl acetate extract from the fermentation broth of the endophytic fungus ...
Hongqi Zhang   +5 more
doaj   +1 more source

Chemical Structure Data File for M.A. Paige's Thesis, " Synthesis and reaction of 3(2H)-Furanone derivatives."

open access: yes, 2020
This Structure Data File (SDfile) is associated with the thesis: Paige, M.A. " Synthesis and reaction of 3(2H)-Furanone derivatives." and http://library.ua.edu/vwebv/holdingsInfo?bibId=1069492 It is distributed by the University of Alabama Libraries. The
Scalfani, Vincent F.
core   +1 more source

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