Results 31 to 40 of about 4,881 (175)

Synthesis, characterization and evaluation of antiinflammatory properties of novel α, β-unsaturated ketones [PDF]

open access: yes, 2020
Purpose: To prepare and characterize alicyclic aromatic chalcone derivatives, and study their antibiotic and anti-inflammatory properties.Methods: Claisen-Schmidt (aldol condensation) base-catalyzed condensation was used for preparation of chalcone ...
Alrubaie, Leaqaa A.   +2 more
core   +2 more sources

Synthesis and characterization of new Oxazine , Thiazine and Pyrazol derived from chalcones

open access: yesمجلة بغداد للعلوم, 2014
In this study, chalcones were synthesis by condensing 2-acetylpyridine with aromatic aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation.
Baghdad Science Journal
doaj   +1 more source

(E)-1-(2-Aminophenyl)-3-(4-chlorophenyl)prop-2-en-1-one [PDF]

open access: yes, 2016
The title chalcone (E)-1-(2-aminophenyl)-3-(4-chlorophenyl)prop-2-en-1-one was prepared with an excellent yield from a Claisen–Schmidt condensation reaction between o-aminoacetophenone and p-chlorobenzaldehyde.
Abonia, Rodrigo   +5 more
core   +2 more sources

Design and synthesis of 3-(4-aminophenyl)-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazole-1-carboxamide/carbothioamide analogues as antitubercular agents

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2015
Emergence of multi-drug resistant tuberculosis (MDR-TB) and HIV-TB co-infections potentiate the development of newer antitubercular agents to combat against tuberculosis, a dreadful disease.
Mohamed Jawed Ahsan, Veerendra Saini
doaj   +1 more source

Synthetic approaches toward sesterterpenoids [PDF]

open access: yes, 2012
Sesterterpenoids account for many bioactive natural products, often with unusual and complex structural features, which makes them attractive targets for synthetic chemists. This review surveys efforts undertaken toward the synthesis of sesterterpenoids,
Hog, Daniel T.   +2 more
core   +1 more source

Synthesis and Antimicrobial Activity of Some New Chalcones of 2-Acetyl Pyridine

open access: yesE-Journal of Chemistry, 2008
Six new chalcones were synthesised by condensing 2-acetyl pyridine with aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation.
Y. Rajendra Prasad   +3 more
doaj   +1 more source

(E)-3-[3-(2-Butoxyquinolin-3-yl)acryloyl]-2-hydroxy-4H-chromen-4-one

open access: yesMolbank, 2018
The coumarinyl-quinolinylchalcone hybrid (E)-3-[3-(2-butoxyquinolin-3-yl)acryloyl]-2-hydroxy-4H-chromen-4-one 3b was prepared in good yield from a Claisen-Schmidt condensation reaction between 3-acetyl-4-hydroxy-2H-chromen-2-one 1 and 2-butoxyquinoline-3-
Rodrigo Abonia   +3 more
doaj   +1 more source

Ionic liquid mediated synthesis, molecular docking study and anticancer activity of 5-((3-aryl-1-phenyl-1h-pyrazol-4-yl)methylene)-2-thioxothiazolidin-4-ones

open access: yesResults in Chemistry, 2023
A series of 5-((3-Aryl-1-phenyl-1H-pyrazol-4-yl)methylene)-2-thioxothiazolidin-4-ones were synthesised by the Claisen-Schmidt condensation of 1,3-diphenyl-1H-pyrazole-4-carbaldehyde with 2-thioxothiazolidin-4-one using Ionic liquid under both ...
D. Valli Sowbhagyam   +2 more
doaj   +1 more source

Role of the synthesis route on the properties of hybrid LDH-graphene as basic catalysts [PDF]

open access: yes, 2017
Layered double hydroxides (LDH or HT) or their derived mixed oxides present marked acid-base properties useful in catalysis, but they lead to agglomerate inducing a weak accessibility to the active sites.
Alvarez, Mayra G   +3 more
core   +2 more sources

Synthesis of N-methyl-4-piperidone Curcumin Analogues and Their Cytotoxicity Activity against T47D Cell Lines

open access: yesIndonesian Journal of Chemistry, 2018
Three piperidone curcumin analogues (N-methyl-(3E,5E)-3,5-bis-(2-chlorobenzylidene)-4-piperidone (1), N-methyl-(3E,5E)-3,5-bis-(3-bromobenzylidene)-4-piperidone (2) and N-methyl-(3E,5E)-3,5-bis-(4-chlorobenzylidene)-4-piperidone (3)) were synthesized ...
Yum Eryanti   +4 more
doaj   +1 more source

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