Results 21 to 30 of about 1,361 (163)

Crystal structure of (2E)-1-(4-ethoxyphenyl)-3-(4-fluorophenyl)prop-2-en-1-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
The title molecule, C17H15FO2, was synthesized by a Claisen–Schmidt condensation with 4-fluorobenzaldehyde and 4′-ethoxyacetophenone. The torsion angles between the 4-fluorophenyl ring and the alkene and the 4′-ethoxyphenyl ring and the 2-propen-1-one ...
Merle Bernhard   +2 more
doaj   +1 more source

La(OH)3 and La2O2CO3 nanorod catalysts for Claisen-Schmidt condensation [PDF]

open access: yesChinese Journal of Catalysis, 2014
Abstract La(OH)3 nanorods of 15 nm diameter and up to 700 nm long were synthesized using different pH values of the solution used in the hydrothermal synthesis. A more alkaline solution favored the formation of tiny La(OH)3 nuclei, which grew along the c-axis due to their anisotropic nature and led to the formation of rod-shaped crystals. Calcination
Fei Wang, Na Ta, Yong Li, Wenjie Shen
openaire   +1 more source

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

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

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

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

3-Benzylidene-1′-methyl-4′-phenyldispiro[cyclopentane-1,3′-pyrrolidine-2′,1′′-acenaphthene]-2,2′′-dione

open access: yesIUCrData, 2017
In the title compound, C33H27NO2, the pyrrolidine ring adopts an envelope conformation, with the N atom as the flap. The cyclopentanone ring adopts a twisted conformation about the Cs—CH2 bond (s = spiro link). The dihedral angle between these rings (all
E. Varadharajan   +3 more
doaj   +1 more source

(E)-3-[4-(1H-Imidazol-1-yl)phenyl]-1-(4-methylphenyl)prop-2-en-1-one

open access: yesMolbank, 2021
Imidazole-containing chalcones have been shown to be strongly effective against Aspergillusfumigatus, the causative agent for the disease pulmonary aspergillosis. Claisen–Schmidt condensation of 4-(1H-imidazol-1-yl)benzaldehyde with 4′-methylacetophenone
Nicholas Bailey, Bradley O. Ashburn
doaj   +1 more source

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