Results 11 to 20 of about 65,551 (284)
Coumarin–Tetrapyrrolic Macrocycle Conjugates: Synthesis and Applications
Molecules, 2017 This review covers the synthesis of coumarin–porphyrin, coumarin–phthalocyanine and coumarin–corrole conjugates and their potential applications. While coumarin–phthalocyanine conjugates were obtained almost exclusively by tetramerization of coumarin ...
Ana F. R. Cerqueira +3 more
doaj +2 more sources
Coumarin application modulates antioxidant defense to enhance resistance against Fusarium in mung bean [PDF]
Scientific ReportsPlant-derived bioactive compounds contribute a major role in plant defense against fungal pathogens. Among these, coumarin proved to be a major controller in root-pathogen interactions, exhibiting diverse protective mechanisms.
Marium Tariq +10 more
doaj +2 more sources
Novel synthesized covalent organic framework and determination of its adsorption capacity for coumarin dyes [PDF]
BMC ChemistryUsing a solvothermal Schiff-base condensation technique, a novel nitrogen-rich covalent organic framework (COFDFFT−PDKA) was created and its ability to adsorb coumarin-based dyes from aqueous solutions was assessed.
Emra Özden +2 more
doaj +2 more sources
, 2019 Two regioisomeric pairs of heptahelical mono- and biscoumarins that are differentiated by “inward” and “outward” disposition of the pyran-2-one moiety have been synthesized and investigated to understand the influence of helicity on excited-state and ...
Arindam Mukhopadhyay (1961227) +4 more
core +7 more sources
Coumarin and Its Derivatives [PDF]
, 2021 Coumarins are widely distributed in nature and can be found in a large number of naturally occurring and synthetic bioactive molecules. The unique and versatile oxygen-containing heterocyclic structure makes them a privileged scaffold in Medicinal ...
core +1 more source
Degenerate and Non-Degenerate Two-Photon Absorption of Coumarin Dyes [PDF]
, 2023 Two-photon absorption (2PA) spectroscopy is a robust bioimaging tool that depends on the determined cross sections (σ2PA). The absorption of both photons occurs simultaneously with equivalent (degenerate) or different (non-degenerate) photon energies, D ...
Ismael A., Elayan, Alex, Brown
core +2 more sources
Coumarins in Food and Methods of Their Determination
Foods, 2020 Coumarin is a natural product with aromatic and fragrant characteristics, widespread in the entire plant kingdom. It is found in different plant sources such as vegetables, spices, fruits, and medicinal plants including all parts of the plants—fruits ...
Mirjana Lončar +6 more
doaj +1 more source
Synthesis, Characterization Of Various Coumarin Derivatives [PDF]
مجلة التربية والعلم, 2013 3-acetyl coumarin (1) was prepared by reacting salicyldehyde with ethylacetoacetate.3-(2-bromoacetyl coumarin (2) was also prepared by reacting 3-acetyl coumarin with bromine in chloroform solution.
Jamal M. Hamid
doaj +1 more source
Coumarin-Based Fluorescent Inhibitors for Photocontrollable Bioactivation
, 2023 Activation of the IRE-1/XBP-1 pathway is related to many human diseases. Coumarin-based derivatives acting as both IRE-1 inhibitors and bright fluorophores are highly desirable to establish an integrated fluorescent inhibitor system.
Zhihong Wu (224503) +23 more
core +1 more source
Acta Chimica Slovenica, 2021 In this study, the effects of 3-benzoyl-7-hydroxy coumarin molecule on mineral and antioxidant enzymes were investigated in rat liver exposed to oxidative stress with aluminium chloride (AlCl3). Adult male Wistar albino rats were divided into four groups
Ahmet Ozkaya, Kenan Türkan
doaj +1 more source