Results 71 to 80 of about 54,606 (348)
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
Differentiation of argentine propolis from different species of bees and geographical origins by UV spectroscopy and chemometric analysis [PDF]
, 2018 Bees collect vegetal resins that they mix with their wax and mechanical impurities to elaborate propolis, whose chemical composition is complex and variable depending on botanical/geographical origin, type of bee, time of year when it was produced and ...
Borelli, Romina +7 more
core +2 more sources
Chalcones to control Alternaria alternata in murcott tangor fruits
Bioscience Journal, 2016 Alternaria brown spot (ABS), caused by the fungus Alternaria alternata pathotype tangerine, is one of the main phytosanitary problems for mandarin growers.
Renato Barbosa Camargos +8 more
doaj +3 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
Molecules, 2020 Infectious diseases caused by fungi and mycobacteria pose an important problem for humankind. Similarly, cancer is one of the leading causes of death globally.
A. Shaik +6 more
semanticscholar +1 more source
BIOLOGICAL ACTIVITIES AND NOVEL APPLICATIONS OF CHALCONES [PDF]
Planta Daninha, 2016 This review provides information on the biological activities of chalcones (whether natural or synthetic derivatives) on different organisms, as well as an overview of the functions and possible new applications of these plant secondary metabolites on ...
C. DÍAZ-TIELAS +3 more
doaj +2 more sources
, 2020 A series of carbazole or triphenylamine based mono-chalcones, displaying either D–π-A or A–π-D–π-A architecture, have been designed and synthesized for intense absorption bands at around 405 nm with high molar extinction coefficients around 105 M−1 cm−1 ...
Hong Chen +9 more
semanticscholar +1 more source
Chalcones IX : Syntheses of Some Methoxy Chalcones
, 1972 Department of Chemistry, H. B. Technological Institute, Kanpur Received 15 October 1971 Chalcones IX : Syntheses of Some Methoxy Chalcones.
SHYAM SUNDER MISRA, DINKAR
openaire +3 more sources
Synthetic and Mechanistic Studies on the Solvent-Dependent Copper-Catalyzed Formation of Indolizines and Chalcones [PDF]
, 2015 Copper nanoparticles supported on activated carbon have been found to catalyze the multicomponent synthesis of indolizines from pyridine-2-carbaldehyde derivatives, secondary amines, and terminal alkynes in dichloromethane; in the absence of solvent ...
Albaladejo Maricó, María José +2 more
core +2 more sources
The effects of trans-chalcone and chalcone 4 hydrate on the growth of Babesia and Theileria
PLOS Neglected Tropical Diseases, 2019 Chemotherapy is a principle tool for the control and prevention of piroplasmosis. The search for a new chemotherapy against Babesia and Theileria parasites has become increasingly urgent due to the toxic side effects of and developed resistance to the current drugs.
Naoaki Yokoyama +8 more
openaire +5 more sources