Results 1 to 10 of about 136,021 (344)

Photocatalytic production and biological activity of D-arabino-1,4-lactone from D-fructose [PDF]

open access: yesScientific Reports
Lactones play crucial roles in various fields, such as pharmaceuticals, food, and materials science, due to their unique structures and diverse biological activities.
Sho Usuki   +9 more
doaj   +2 more sources

Aqueous self-assembly of a wide range of sophorolipid and glucolipid microbial bioamphiphiles (biosurfactants): considerations on the structure-properties relationship [PDF]

open access: yesColloids and Surfaces A: Physicochemical and Engineering Aspects, 2023
Sophorolipids are well-known scaled-up microbial glycolipid biosurfactants with a strong potential for commercialization due to their biological origin and mildness in contact with the skin and the environment compared to classical surfactants. However, their association properties in water are still poorly understood, they cannot be predicted and ...
arxiv   +1 more source

Keto-Enol Tautomerism in Passerini and Ugi Adducts

open access: yesMolecules, 2021
The use of arylglyoxal as starting material in Passerini and Ugi reactions affords β-ketoamides. This has allowed to study keto-enol tautomerism in these systems and assess the way in which the presence of acyloxy or aminoacyl groups bound to the C2 ...
Pablo Pertejo   +8 more
doaj   +1 more source

Impact of harvest date on aroma compound composition of Merlot and Cabernet-Sauvignon must and wine in a context of climate change: a focus on cooked fruit molecular markers

open access: yesOENO One, 2023
Choice of harvest date can modulate the aroma intensity of herbaceous/vegetal, fresh fruit and cooked fruit nuances, thus helping the winemaker to produce wine of different styles and balance.
Lucile Allamy   +2 more
doaj   +1 more source

The use of aluminum trialkoxide for synthesis of poly (ε-caprolactone) and poly (δ-valerolactone): A comparative study [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
Four aluminum(III) trialkoxides, namely Al(III) ethoxide (1), Al(III) isopropoxide (2), Al(III) tert-butoxide (3), and Al(III) sec.-butoxide (4), were employed as initiators for the bulk ring-opening polymerizations of δ-valerolactone (VL) and ...
Jitrayut Jitonnom   +3 more
doaj   +1 more source

Absolute Configuration of In Situ Crystallized (+)-γ-Decalactone

open access: yesChemistry, 2021
Knowledge about the absolute configuration of small bioactive organic molecules is essential in pharmaceutical research because enantiomers can exhibit considerably different effects on living organisms.
Michael Patzer   +3 more
doaj   +1 more source

Transition Metal-Mediated Annulation Approaches for Synthesis of Arylnaphthalene Lignan Lactones

open access: yesFrontiers in Chemistry, 2020
Arylnaphthalene lignan lactones belong to a class of natural lignans, and more than 60 analogs have been isolated. Their pharmacological activities as well as unique structural features have attracted considerable attention from medicinal and synthetic ...
Sooyoung Park   +3 more
doaj   +1 more source

The Novel Chiral 2(5H)-Furanone Sulfones Possessing Terpene Moiety: Synthesis and Biological Activity

open access: yesMolecules, 2023
Over the past decades, 2(5H)-furanone derivatives have been extensively studied because of their promising ability to prevent the biofilm formation by various pathogenic bacteria.
Alsu M. Khabibrakhmanova   +10 more
doaj   +1 more source

Visible-light-induced addition of carboxymethanide to styrene from monochloroacetic acid

open access: yesBeilstein Journal of Organic Chemistry, 2020
Where monochloroacetic acid is widely used as a starting material for the synthesis of relevant groups of compounds, many of these synthetic procedures are based on nucleophilic substitution of the carbon chlorine bond.
Kaj M. van Vliet   +3 more
doaj   +1 more source

Lactone Component From Ligusticum chuanxiong Alleviates Myocardial Ischemia Injury Through Inhibiting Autophagy

open access: yesFrontiers in Pharmacology, 2018
The dysregulation of autophagy is associated with a series of cardiovascular diseases, such as myocardial ischemia injury. Lactone component from Ligusticum chuanxiong (LLC) is the major constituent of the traditional Chinese herb L.
Gang Wang   +18 more
doaj   +1 more source

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