Results 61 to 70 of about 12,568 (228)

Flavonoids of Lonchocarpus montanus A.M.G. Azevedo and biological activity

open access: yesAnais da Academia Brasileira de Ciências, 2007
The analysis of root extracts from Lonchocarpus montanus A.M.G. Azevedo resulted in the isolation of twenty three compounds chiefly flavonoids of which five (four flavonoids and one benzophenone) are described for the first time. The molecular structures
Aderbal F. Magalhães   +5 more
doaj   +1 more source

Fibrate-based N-acylsulphonamides targeting carbonic anhydrases: synthesis, biochemical evaluation, and docking studies

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2019
A large library of fibrate-based N-acylsulphonamides was designed, synthesised, and fully characterised in order to propose them as zinc binders for the inhibition of human carbonic anhydrase (hCA) enzymatic activity.
Alessandra Ammazzalorso   +9 more
doaj   +1 more source

Three cases of photoallergic contact dermatitis induced by the ultraviolet absorber benzophenone that occurred after dermatitis due to ketoprofen‐Investigation of cosensitization with other ultraviolet absorbers and patient background

open access: yesJournal of Cutaneous Immunology and Allergy, 2019
Objectives Three teenage patients developed dermatitis at the site of contact of a free‐pass wristband from an amusement park. Each had experienced dermatitis due to ketoprofen.
Tomoko Tanahashi   +3 more
doaj   +1 more source

New Ent-Kaurane-Type Diterpene Glycosides and Benzophenone from Ranunculus muricatus Linn.

open access: yesMolecules, 2015
Two new ent-kaurane diterpene glycosides, ranunculosides A (1) and B (2), and a new benzophenone, ranunculone C (3), were isolated from the aerial part of Ranunculus muricatus Linn. The chemical structures of compounds 1–3 were established to be (2S)-ent-
Bi-Ling Wu   +4 more
doaj   +1 more source

3D-printed, home-made, UV-LED photoreactor as a simple and economic tool to perform photochemical reactions in high school laboratories

open access: yesChemistry Teacher International, 2019
In the paper we present the simple manufacturing of an easy and economical UV-A photoreactor using a desktop 3D printer and its application in chemical transformations.
Rossi Sergio   +3 more
doaj   +1 more source

Unveiling the Triplet-State Interaction Mechanism Between 4-Carboxybenzophenone and 2-Naphthalene Sulfonate—A Laser Flash Photolysis Study

open access: yesPhotochem
This communication aims to comprehensively elucidate the intricate mechanism governing the interaction between the excited triplet state of 4-Carboxybenzophenone (CB*) and the anionic form of 2-Naphthalene Sulfonate (NpSO3−), employing the 337 nm ...
Piotr Filipiak   +3 more
doaj   +1 more source

Two New Chemical Constituents from the Stem Bark of Garcinia mangostana

open access: yesMolecules, 2014
A detailed chemical study on the ethyl acetate and methanol extracts of the stem bark of Garcinia mangostana resulted in the successful isolation of one new prenylated xanthone, mangaxanthone B (1), one new benzophenone, mangaphenone (2), and two known ...
Irene See   +4 more
doaj   +1 more source

Glyoxylic‐Acetal‐Based Gel‐Polymer Electrolytes for Lithium‐Ion Batteries

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
A safe electrolyte based on tetraethoxyglyoxal (LE) is combined with a methacrylate polymer matrix. The resulting gel‐polymer electrolyte (GPE) exhibits an increased flash point, suitable ionic conductivity, and a stable performance in lithium‐ion battery cells.
Christian Leibing   +4 more
wiley   +1 more source

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