Results 61 to 70 of about 1,020,429 (254)

Facile synthetic procedure for and electrochemical properties of hexa(2-thienyl)benzenes directed toward electroactive materials [PDF]

open access: yes, 2008
In the presence of RhCl3 center dot 3H(2)O and i-Pr2NEt, the cyclotrimerization of di(2-thienyl)acetylenes proceeded smoothly to afford hexa(2-thienyl)benzenes.
Abruña   +22 more
core   +1 more source

Analytical and Preparative Separation of Softwood Lignans by Supercritical Fluid Chromatography

open access: yesSeparations, 2023
Lignans are widespread polyphenolic secondary plant metabolites possessing high biological activity. One of the most promising industrial-scale sources of such compounds is coniferous knotwood, containing a large number of polyphenolic compounds.
Nikolay V. Ul’yanovskii   +5 more
doaj   +1 more source

Synthesis, crystal structures, Hirshfeld surface analysis and spectroscopic studies of two Schiff bases of anisaldehyde and their urease and acetylcholinesterase inhibitory and antioxidant properties

open access: yesHeliyon, 2019
The growing demand of pharmaceutical industry for more effective drugs requires new molecules with promising medicinal activities. In the present work, a natural product anisaldehyde was treated with hydrazine and 3,5-dichloroaniline to synthesize their ...
Amber Jan Muhammad   +4 more
doaj   +1 more source

Chemical Constituents and Biological Activities of Ficus tikoua Bureau

open access: yesJournal of Chemistry, 2022
Ficus tikoua Bureau (F. tikoua Bur.) is a perennial woody vine in the Moraceae family that has been used as a traditional folk medicine for centuries to treat many diseases such as chronic bronchitis, diarrhea, dysentery, rheumatism, and other ...
Liangliang Yao   +4 more
doaj   +1 more source

Strain prioritization and genome mining for enediyne natural products [PDF]

open access: yes, 2016
The enediyne family of natural products has had a profound impact on modern chemistry, biology, and medicine, and yet only 11 enediynes have been structurally characterized to date.
Ben Shen   +18 more
core   +2 more sources

Characterization of Botanical and Geographical Origin of Corsican “Spring” Honeys by Melissopalynological and Volatile Analysis

open access: yesFoods, 2014
Pollen spectrum, physicochemical parameters and volatile fraction of Corsican “spring” honeys were investigated with the aim of developing a multidisciplinary method for the qualification of honeys in which nectar resources are under-represented in the ...
Yin Yang   +3 more
doaj   +1 more source

Production and characterization of activated carbons made from sunflower stems [PDF]

open access: yes, 2012
Activated carbons (ACs) are artificial materials, prepared from natural or synthetic precursors that are worldwide extensively used. The ACs main characteristics are the noticeable adsorption capabilities provided by the highly developed porous structure
Carrott, Peter   +3 more
core  

Radical Scavenging, Proteases Activities, and Phenolics Composition of Bark Extracts from 21 Medicinal Plants

open access: yesJournal of Chemistry, 2015
Stem barks derived from twenty-one medicinal plants were extracted in methanol (100%) and acetone-water (70 : 30 v/v) and at room as well as at reflux temperature conditions.
Muhammad Asam Raza   +2 more
doaj   +1 more source

Volatile and Flavonoid Composition of the Peel of Citrus medica L. var. Corsican Fruit for Quality Assessment of Its Liqueur

open access: yesFood Technology and Biotechnology, 2014
The volatile and flavonoid compositions of the peel of Citrus medica L. var. Corsican fruits cultivated in Corsica were studied according to the maturity of the citron fruits measured using growing degree-days.
Nicolas Venturini   +4 more
doaj   +1 more source

Iterative in Situ Click Chemistry Assembles a Branched Capture Agent and Allosteric Inhibitor for Akt1 [PDF]

open access: yes, 2011
We describe the use of iterative in situ click chemistry to design an Akt-specific branched peptide triligand that is a drop-in replacement for monoclonal antibodies in multiple biochemical assays.
Agnew, Heather D.   +12 more
core   +2 more sources

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