Results 51 to 60 of about 6,216 (203)
Synthesis, Characterization, Antioxidant Activity and Conformational Study of 4-Hydroxychalcone
Orbital: The Electronic Journal of Chemistry, 2021 The objective of this work was to develop a synthesis, characterization, and conformational study of 4-hydroxychalcone. The chalcone was obtained using Claisen-Schmidt reaction. The product was characterized by IR and NMR spectroscopy.
André Luis Kerek +2 more
doaj +3 more sources
IUCrData, 2020 In the title compound, C28H28O6, the benzene rings in the resveratrol moiety are connected by a trans C=C double bond, and the hydroxyl group containing a benzene ring and the central benzene ring are linked through a C=(O)—C=C (enone) moiety to form a ...
Miri Yoo, Dongsoo Koh
doaj +1 more source
Enabling the photochromism of 4′-aminoflavylium compounds in water by host-guest interaction with β-cyclodextrin [PDF]
Funding Information: This work received financial support from FCT/MCTES (UIDP/50006/2020 DOI 10.54499/UIDP/50006/2020) through national funds and the China Scholarship Council (grant number: 202306350167).
Basílio, Nuno +3 more
core +1 more source
Crystal structure of (E)-3-(2-hydroxy-4-methylphenyl)-1-(2,4,6-trimethoxyphenyl)prop-2-en-1-one
Acta Crystallographica Section E: Crystallographic Communications, 2019 The title chalcone derivative, C19H20O5, adopts a trans configuration with respect to the olefinic C=C double bond. The 2-hydroxy-4-methylphenyl ring is coplanar with the attached enone bridge [torsion angle = −179.96 (14)°], where this plane is nearly ...
Maadh Jumaah +2 more
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Food Frontiers, EarlyView.ABSTRACT Medicago sativa L. (alfalfa) harbors a remarkably diverse reservoir of bioactive secondary metabolites. Flavonoids, isoflavones, and triterpenoid saponins dominate its bioactivity landscape, driving potent antioxidant, anti‐inflammatory, antimicrobial, estrogenic, hypolipidemic, and cytotoxic actions through redox modulation, membrane ...
Parham Joolaei Ahranjani +3 more
wiley +1 more source
(E)-3-(4-Bromophenyl)-1-(3,4-dichlorophenyl)prop-2-en-1-one
Acta Crystallographica Section E, 2009 The molecule of the title compound, C15H9BrCl2O, is shown to be the E isomer, with the 3,4-dichlorobenzoyl and p-bromophenyl substituents in trans positions with respect to the chalcone olefin bond.
Rajni Kant +4 more
doaj +1 more source
Bio-Evaluation of 99mTc-Labeled Homodimeric Chalcone Derivative as Amyloid-β-Targeting Probe
Frontiers in Medicine, 2022 Chalcone derivatives have been successfully utilized for a range of biological applications and can cross the blood–brain barrier easily. β-amyloid-specific bis-chalcone derivative, 6,9-bis(carboxymethyl)-14-(4-[(E)-3-(4-(dimethylamino)phenyl)acryloyl ...
Garima Mann +7 more
doaj +1 more source
Evolution of Flavylium-Based Color Systems in Plants: What Physical Chemistry Can Tell Us [PDF]
, 2021 Anthocyanins are the basis of the color of angiosperms, 3-deoxyanthocyanins and sphagnorubin play the same role in mosses and ferns, and auronidins are responsible for the color in liverworts.
Alejo-Armijo, Alfonso +6 more
core +2 more sources
ChemistryOpen, EarlyView.In organic synthesis, deep eutectic solvents (DES) have demonstrated their ability to be used as reaction media for the development of reactions in line with green chemistry principles. This review presents an overview of microwave‐assisted organic synthesis in DES, highlighting the diversity of uses for these solvents, their role in mechanisms, the ...
Pierre‐Olivier Delaye +2 more
wiley +1 more source
In Vitro Action of Flavonoids in the Canine Malignant Histiocytic Cell Line DH82
Molecules, 2013 Cancer is commonly diagnosed in dogs over the age of 10 and is a leading cause of death due to the lack of effective drugs. Flavonoids possess antioxidant, anti-inflammatory and anticarcinogenic properties and have been studied as chemopreventive agents ...
Gabriel Silva +4 more
doaj +1 more source