Solvent-dependent regioselective oxidation of trans-chalcones using aqueous hydrogen peroxide [PDF]
, 2013 Peng Wang +5 more
openalex +1 more source
A model compound for pyridinechalcone-based multistate systems. Ring opening-closure as the slowest kinetic step of the multistate [PDF]
, 2019 UID/QUI/50006/2019. PTDC/QEQ-QFI/1971/2014. PTDC/QUI-COL/32351/2017. PTDC/QUI-QFI/30951/2017. grant no. 219201.Anthocyanins and related flavylium derivatives exist in aqueous solution as a pH-dependent mole fraction distribution of species (a ...
Alejo-Armijo, Alfonso +6 more
core +1 more source
(E)-1-(4-Aminophenyl)-3-(pyridin-3-yl)prop-2-en-1-one
Acta Crystallographica Section E, 2011 The title chalcone derivative, C14H12N2O, consists of 4-aminophenyl and pyridine rings bridged by a prop-2-en-1-one unit and exists in a trans configuration with respect to the C=C double bond. The molecule is slightly twisted with a dihedral angle of 29.
Suchada Chantrapromma +4 more
doaj +1 more source
SYNTHESIS OF CHALCONES VIA CLAISEN–SCHMIDT CONDENSATION REACTION CATALYZED BY SILICA-H2SO4 UNDER ULTRASOUND IRRADIATION [PDF]
, 2014 The synthesis of 1,3-diaryl-2-propenones was carried out by using ultrasonic irradiation in the presence of silica-H2SO4, which was used as a catalyst in solvent-free conditions.
Chtourou, Manef +3 more
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RSC Advances, 2019 An aerobic coupling of 2-aminopyrimidines or 2-aminopyridines with trans-chalcones to afford aroylimidazo[1,2-a]pyrimidines and aroylimidazo[1,2-a]pyridines is reported.
Oanh T. K. Nguyen +6 more
openaire +3 more sources
Liquid-Assisted Mechanosynthesis of trans-2,3-Dihydropyrroles from Chalcones and Enaminones
, 2020 Hui Xu +3 more
openalex +1 more source
Efeito da substituição por átomos de flúor no equilíbrio conformacional de chalcona
Química Nova, 2001 Chalcone (1) and its fluorinated derivatives 2-4, as well as their cyclic analogues 5-10, were synthesized through an aldol condensation reaction between the corresponding ketone and aldehyde. These compounds were characterized by IR, EIMS and ¹H and 13C
Cesarin-Sobrinho Dari +2 more
doaj
2-Hydroxychalcone−β-cyclodextrin conjugate with pH-modulated photoresponsive binding properties [PDF]
Stimuli-responsive supramolecular receptors are important building blocks for the construction of self-assembled functional materials. We report the design and synthesis of a pH- and light-responsive 2-hydroxychalcone−β-cyclodextrin conjugate (1-Ct) and ...
Basílio, Nuno +5 more
core +1 more source
Cytotoxic activity evaluation of chalcones on human and mouse cell lines [PDF]
, 2014 core +1 more source
Multiresponsive supramolecular systems for information processing at the molecular level [PDF]
, 2013 Dissertação para obtenção do Grau de Doutor em Química SustentávelInformation processing at the molecular level requires systems able to move between several states under control of specific inputs.
Diniz, Ana Marta Correia Alves
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