Results 61 to 70 of about 25,157 (251)
Dichloromethylation of enones by carbon nitride photocatalysis
, 2020 Small organic radicals are ubiquitous intermediates in photocatalysis and are used in organic synthesis to install functional groups and to tune electronic properties and pharmacokinetic parameters of the final molecule.
Antonietti, M. +4 more
core +1 more source
Enantioselective Conjugate Addition of Diethylzinc to Chalcones Catalysed by Chiral Ni(II) Aminoalcohol Complexes [PDF]
, 1994 Conjugate addition of diethylzinc to chalcones is catalysed by complexes prepared in situ from Ni(acac)2 and cis-exo-N,N-dialkyl-3-aminoisoborneols or (+)-cis-endo-N,N-dimethyl-3-aminoborneol ((+)-DAB) (13b).
Feringa, Bernard +2 more
core +2 more sources
Synthesis of New Pyrazolines Derivatives from Coumarine Compounds [PDF]
مجلة التربية والعلم, 1999 The present work includes preparation of series of chalcones and condensation of these chalcones with a series of prepared coumarin hydrazides in acidic medium to afford the new pyrazolines.
W. Gh-Bedewy, O. Salih, A. Ahmad
doaj +1 more source
Pathogens, 2021 Trypanosomiasis and leishmaniasis are a group of neglected parasitic diseases caused by several species of parasites belonging to the family Trypansomatida. The present study investigated the antitrypanosomal and antileishmanial activity of chalcones and
Ahmed M. Zheoat +9 more
doaj +1 more source
Green Synthesis of Chalcone Derivatives Using Chalcones as Precursor
, 2022 Recently, the use of green methodologies like sonication, use of ionic liquids, etc. attracted the attention of researchers in the field of organic synthesis as they have advantages such as mild reaction conditions, environmentally benign procedures, etc.
Surbhi, Dhadda, +2 more
openaire +2 more sources
Anticancer Activity of Chalcones and Its Derivatives: Review and In Silico Studies
Molecules, 2023 Chalcones are direct precursors in the biosynthesis of flavonoids. They have an α,β-unsaturated carbonyl system which gives them broad biological properties.
Fernando Ferreira Leite +10 more
doaj +1 more source
Simple chalcones and bis-chalcones ethers as possible pleiotropic agents
Journal of Enzyme Inhibition and Medicinal Chemistry, 2015 The synthesis, the antioxidative properties and the lipoxygenase (LOX) and acetylcholinesterase (AChE) inhibition of a number of 4-hydroxy-chalcones diversely substituted as well as of a series of bis-chalcones ether derivatives are reported. The chalcones derivatives were readily produced using a Claisen-Schmidt condensation in a ultra sound bath in ...
Liargkova, T. +4 more
openaire +3 more sources
ChemFoodChem, EarlyView.Insoluble biopolyelectrolyte complexes formed between blackberry anthocyanins and λ‐carrageenan are investigated. Optimal complexation occurs at low carrageenan ratios and acidic pH, producing porous hydrogel‐like structures with enhanced thermal stability.
Tomás Garrido +5 more
wiley +1 more source
Synthesis and Identification of Phenyl Azochalcone & bis- azo – Chalcone Derivatives Derived from P-amino Acetophenone [PDF]
Kirkuk Journal of Science, 2018 This work involves the synthesis of different substituted amino-chalcones via claisen- schmidt condensation reaction between p-amino acetophenone and different aromatic substituted benzaldehydes. The second step involves the conversion of amino-chalcones
Zahraa Talib Ghlib +2 more
doaj +1 more source
Experimental and quantum chemical studies of a novel synthetic prenylated chalcone [PDF]
, 2013 BACKGROUND: Chalcones are ubiquitous natural compounds with a wide variety of reported biological activities, including antitumoral, antiviral and antimicrobial effects.
Alejandro A Camacho-Dávila +5 more
core +1 more source