Hexaprenoid Hydroquinones from the Sponge Haliclona (aka Adocia) sp.
, 2016 Three new hexaprenoid hydroquinones, adociaquinol (1), adociasulfate 11 (2), and adociasulfate 12 (3), together with the known adociasulfates 2, 4, and 6, were isolated from the marine sponge Haliclona (aka Adocia) sp.
D. John Faulkner (2413732) +1 more
core +21 more sources
Synthetic Strategies to Terpene Quinones/Hydroquinones
Marine Drugs, 2012 The cytotoxic and antiproliferative properties of many natural sesquiterpene-quinones and -hydroquinones from sponges offer promising opportunities for the development of new drugs.
Marina Gordaliza
doaj +2 more sources
Antioxidant Activity of Natural Hydroquinones
Antioxidants, 2022 Secondary metabolites derived from hydroquinone are quite rare in nature despite the original simplicity of its structure, especially when compared to other derivatives with which it shares biosynthetic pathways.
Rm M. Giner +2 more
exaly +3 more sources
Chemical Constituents and Antifungal Properties of Piper ceanothifolium Kunth Against Phytopathogens Associated with Cocoa Crops [PDF]
PlantsIn this study, the antifungal potential of chemical constituents of Piper ceanothifolium Kunth was determined against three phytopathogenic fungi associated with the cocoa crop. The methodology included the phytochemical study of the inflorescences of P.
Yudy S. Mahecha-Jimenez +2 more
doaj +2 more sources
Molecules, 2021 Owing to their broad range of redox potential, quinones/hydroquinones can be utilized for energy storage in redox flow batteries. In terms of stability, organic catholytes are more challenging than anolytes.
Xian Yang +5 more
doaj +2 more sources
Evaluations of Quinone/Hydroquinone Couples Acting as Two Hydrogen Atoms Antioxidants, Radical Quenchers, and Hydrogen Atom Abstractors [PDF]
BiomoleculesQuinone/hydroquinone couples play a crucial role in a variety of biochemical processes and chemical syntheses. Extending from our previous work, a practical dataset including the thermodynamic driving forces of 12 chemical processes for 118 quinone ...
Xiaotang Chen +3 more
doaj +2 more sources
A Study about Regioisomeric Hydroquinones with Multiple Intramolecular Hydrogen Bonding [PDF]
Molecules, 2017 A theoretical exploration about hydrogen bonding in a series of synthetic regioisomeric antitumor tricyclic hydroquinones is presented. The stabilization energy for the intramolecular hydrogen bond (IHB) formation in four structurally different ...
Maximiliano Martínez-Cifuentes +4 more
doaj +2 more sources
The Synthesis of 5-Hydroxybenzofurans via Tandem In Situ Oxidative Coupling and Cyclization
SynOpen, 2022 A series of 5-hydroxybenzofurans have been prepared by PIDA-mediated oxidation and coupling cyclization of β-dicarbonyl compounds and hydroquinones. The reaction functionalizes C(sp2)–H of hydroquinones directly with yields of target molecules up to 96%.
Zhongren Lin +6 more
doaj +1 more source
Versatile Biaryls and Fused Aromatics through Oxidative Coupling of Hydroquinones with (Hetero)Arenes [PDF]
, 2023 Hydroquinones bearing an electron-withdrawing group at the C2-position effectively underwent oxidative coupling with indoles or arenes in the presence of 2,3-dichloro-5,6-dicyano p-benzoquinone (DDQ) and FeCl3 to give the corresponding biaryls.
Shuji, Akai +13 more
core +1 more source
Directed Synthesis of Humic and Fulvic Derivatives with Enhanced Antioxidant Properties
Agronomy, 2021 Redox moieties, which are present in the molecular backbone of humic substances (HS), govern their antioxidant properties. We hypothesized that a directed modification of the humic backbone via incorporation of redox moieties with known redox properties ...
Alexander B. Volikov +11 more
doaj +1 more source