Results 261 to 270 of about 74,636 (287)
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, 2020
Alkylated pyridine chalcone (AIPO) has been synthesized by reaction of 1-allyl-1H-indole-3-carbaldehyde with 2-acetyl pyridine. The chalcone structure was characterized by spectral and elemental analysis.
Abdullah M. Asiri +3 more
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Alkylated pyridine chalcone (AIPO) has been synthesized by reaction of 1-allyl-1H-indole-3-carbaldehyde with 2-acetyl pyridine. The chalcone structure was characterized by spectral and elemental analysis.
Abdullah M. Asiri +3 more
semanticscholar +1 more source
ChemInform Abstract: CHALCONES. XVI‐ INFRARED SPECTRAL STUDIES OF PHENANTHRYL CHALCONES
Chemischer Informationsdienst, 1977IR absorption spectra of ten phenanthryl chalcones have been studied with a view to see the effect on stretching frequencies of α, β-unsaturated carbonyl group when conjugated to the phenanthryl nucleus.
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Ferrocenyl chalcones versus organic chalcones: A comparative study of their nematocidal activity
Bioorganic & Medicinal Chemistry, 2011A series of 30 organic chlacones and 33 ferrocenyl (Fc) chalcones were synthesized and characterized by melting point, elemental analysis, spectroscopy ((1)H NMR and FTIR) and, in two cases, by X-ray crystallography. The biological activity of each compound (10(-4)M in DMSO) against the model nematode Caenorhabditis elegans was examined in terms of ...
Melissa L. Golden +4 more
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Medicinal Chemistry Research, 2011
The heterocyclic analogues of chalcones were synthesized by Claisen Schmidt reaction of (a) benzaldehyde with 2-acetylfurane, 2-acetylpyrrole and 2-acetylthiophene and (b) acetophenone with furfural, thiophene-2-carbaldehyde and pyrrole-2-carbaldehyde. The photolysis of class (a) and (b) chalcones under UV lamp gave different products.
Meena Bakhru +2 more
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The heterocyclic analogues of chalcones were synthesized by Claisen Schmidt reaction of (a) benzaldehyde with 2-acetylfurane, 2-acetylpyrrole and 2-acetylthiophene and (b) acetophenone with furfural, thiophene-2-carbaldehyde and pyrrole-2-carbaldehyde. The photolysis of class (a) and (b) chalcones under UV lamp gave different products.
Meena Bakhru +2 more
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Chemical Communications, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. Baramee +6 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. Baramee +6 more
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Expression of chalcone synthase and chalcone isomerase proteins in Arabidopsis seedlings.
Plant molecular biology, 1997Antibodies have been developed against the first two enzymes of flavonoid biosynthesis in Arabidopsis thaliana. Chalcone synthase (CHS) and chalcone isomerase (CHI) were overexpressed and purified from Escherichia coli as fusion proteins with glutathione S-transferase from Schistosoma japonicum.
Brenda W. Shirley +3 more
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Journal of Natural Products, 2019
Flavonoids, found in almost all fruits and vegetables, belong to a class of plant secondary metabolites with a polyphenolic structure and have properties with health-improving potential. However, few experimental studies on the effects of flavonoids have
Elvira Escribano-Ferrer +4 more
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Flavonoids, found in almost all fruits and vegetables, belong to a class of plant secondary metabolites with a polyphenolic structure and have properties with health-improving potential. However, few experimental studies on the effects of flavonoids have
Elvira Escribano-Ferrer +4 more
semanticscholar +1 more source
ChemInform Abstract: Flemiculosin, a Novel Chalcone.
ChemInform, 1999AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Anil B. Ray +6 more
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The reaction of chalcone with phosphonates
Tetrahedron, 1971Abstract Chalcone reacts with the anions of triethyl phosphonoacetate (I) and diethyl benzylphosphonate (IV)—depending on the operating conditions—either in a Michael or a Wittig-Horner reaction.
Ernst D. Bergmann, A. Solomonovici
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The retroaldol reaction of chalcone
Canadian Journal of Chemistry, 1983All four rate constants required to describe the hydration and aldolization/dealdolization reactions of chalcone (1,3-diphenyl-2-propen-1-one) have been determined in aqueous sodium hydroxide solutions. Kinetics were studied starting with chalcone, with its hydrate, 1,3-diphenyl-3-hydroxy-1-propanone, and with benzaldehyde in the presence of excess ...
Nayyer Monshizadeh Kamkar +4 more
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