Results 1 to 10 of about 6,465 (166)

Engineering Comamonas testosteroni for the production of 2-pyrone-4,6-dicarboxylic acid as a promising building block [PDF]

open access: yesMicrobial Cell Factories, 2023
Background Plastics are an indispensable part of our daily life. However, mismanagement at their end-of-life results in severe environmental consequences.
Tom Delmulle   +6 more
doaj   +2 more sources

Recent Advances in the Synthesis of 2-Pyrones [PDF]

open access: yesMarine Drugs, 2015
The present review summarizes the recent progresses in the synthesis of 2-pyrones and the application to the synthesis of marine natural products. Especially, much attention was placed on the transition metal catalyzed synthetic methodologies in this ...
Jong Seok Lee
doaj   +3 more sources

4-Hydroxy-2-pyrones: Synthesis, Natural Products, and Application

open access: yesOrganics, 2023
4-Hydroxy-2-pyrones are of interest as potential biorenewable molecules for a sustainable transition from biomass feedstock to valuable chemical products.
Vladislav V. Fedin   +3 more
doaj   +1 more source

A facile synthesis in aqueous medium of 3-hydroxy-2-pyrone from aldaric acids or their derivatives

open access: yesResults in Chemistry, 2022
3-Hydroxy-2-pyrone is a valuable building block of many molecules. The syntheses until now proposed to prepare this compound are not ecofriendly and are unsuitable for large scale productions.
Gabriella Leonardi   +3 more
doaj   +1 more source

Two new -Methoxy--Pyrones From the Mangrove Sediment-Derived SCSIO NS126

open access: yesNatural Product Communications, 2021
Two new α -methoxy- γ -pyrone analogs, 2-methoxy-3-methyl-5,6-diethyl- γ -pyrone ( 2 ) and 2-methoxy-3,5-dimethyl-6-propyl- γ -pyrone ( 3 ), together with 2-methoxy-3,5-dimethyl-6-ethyl- γ -pyrone ( 1 ), firstly isolated from natural sources, were ...
Kunlong Li   +6 more
doaj   +1 more source

Synergistic Antibacterial Potential of 6-Pentyl-α-pyrone Lactone and Zinc Oxide Nanoparticles against Multidrug-Resistant Enterobacterales Isolated from Urinary Tract Infections in Humans

open access: yesAntibiotics, 2022
Urinary tract infection (UTI) is one of the most common bacterial infections in the world, which is associated with high morbidity and mortality rates.
Ahmed M. E. Kotb   +5 more
doaj   +1 more source

Chiron approach and the [4 + 2] Diels-Alder cycloaddition of 2-pyrones for the synthesis of cis-(-)-aminoindan-2-ol

open access: yesResults in Chemistry, 2021
A cascade Diels-Alder reaction coupled with an oxidative aromatization reaction was developed and applied to a chiral 2-pyrone for the synthesis of the relevant chiral synthon/chiral auxiliary (-)-cis-aminoindan-2-ol.
Arturo de la Rosa-Barrales   +6 more
doaj   +1 more source

Divergent Asymmetric Total Synthesis of All Four Pestalotin Diastereomers from (R)-Glycidol

open access: yesMolecules, 2020
All four chiral pestalotin diastereomers were synthesized in a straightforward and divergent manner from common (R)-glycidol. Catalytic asymmetric Mukaiyama aldol reactions of readily-available bis(TMSO)diene (Chan’s diene) with (S)-2 ...
Mizuki Moriyama   +3 more
doaj   +1 more source

Bioactive Alpha-Pyrone and Phenolic Glucosides from the Marine-Derived Metarhizium sp. P2100

open access: yesJournal of Fungi, 2022
Glycoside compounds have attracted great interest due to their remarkable and multifarious bioactivities. In this study, four hitherto unknown 4-methoxy-β-D-glucosyl derivatives were obtained and identified from the marine-derived fungus Metarhizium sp ...
Zhong-Lian Ma   +9 more
doaj   +1 more source

Greener assembly of Pyrano[3,4-b]pyran derivative as a novel Hg2+ ion chemosensor

open access: yesOptical Materials: X, 2022
Novel pyrano[3,4-b]pyran derivatives were designed through a greener multicomponent reaction of 4-hydroxy-6-methyl-2-pyrone, various aldehydes, and malononitrile using SrFe12O19, in an expeditious reaction.
Fatemeh Mohajer   +5 more
doaj   +1 more source

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