Results 121 to 130 of about 6,174 (259)

Bench to Any Side—The Pharmacology and Applications of Natural and Synthetic Alkylated Hydroxy Cinnamates and Cinnamides

open access: yesCompounds
Natural alkylated hydroxy cinnamates (AHCs) isolated from medicinal plants and the thereby designed and synthesized cinnamides are derivatives of hydroxy cinnamic acids such as p-coumaric, sinapic, ferulic, and caffeic acids, which are naturally derived ...
José C. J. M. D. S. Menezes   +1 more
doaj   +1 more source

PtrVINV2 is dispensable for cellulose synthesis but essential for salt tolerance in Populus trichocarpa Torr. and Gray

open access: yesPlant Biotechnology Journal, Volume 23, Issue 6, Page 1892-1908, June 2025.
Summary Invertase (EC.3.2.1.26), a key enzyme in sucrose breakdown, is crucial for cellulose synthesis. However, the function of the vacuolar invertase (VINV) in woody plants remains unclear. In this study, transgenic lines of Populus trichocarpa Torr. and Gray were generated to investigate the role of PtrVINV2 in wood formation and under high salinity
Shuang Zhang   +8 more
wiley   +1 more source

Extracts From Hypericum hircinum subsp. majus Exert Antifungal Activity Against a Panel of Sensitive and Drug-Resistant Clinical Strains.

open access: yesFrontiers in Pharmacology, 2018
During the last two decades incidences of fungal infections dramatically increased and the often accompanying failure of available antifungal therapies represents a substantial clinical problem.
Noemi Tocci   +6 more
doaj   +1 more source

Integrative omics reveals mechanisms of biosynthesis and regulation of floral scent in Cymbidium tracyanum

open access: yesPlant Biotechnology Journal, Volume 23, Issue 6, Page 2162-2181, June 2025.
Summary Flower scent is a crucial determiner in pollinator attraction and a significant horticultural trait in ornamental plants. Orchids, which have long been of interest in evolutionary biology and horticulture, exhibit remarkable diversity in floral scent type and intensity. However, the mechanisms underlying floral scent biosynthesis and regulation
Mengling Tu   +7 more
wiley   +1 more source

Contribuição da variedade e da fermentação maloláctica para o perfil em compostos fenólicos de baixa massa molecular de vinhos varietais alentejanos [PDF]

open access: yes, 2016
O presente trabalho teve como objectivo identificar a influência da variedade e o impacto da fermentação maloláctica, no perfil em compostos fenólicos de baixa massa molecular de vinhos varietais do Alentejo.
Cabrita, Maria João   +2 more
core  

Regioselective Hydroformylation of an α,β‐Unsaturated Ester: Spectroscopic Studies on Catalytic Species and the Influence of Ligands on Regioselectivity

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 19, May 27, 2025.
Triphenylphosphine‐free Rh catalysts are the preferred catalyst type for the regioselective hydroformylation of methyl 4‐chlorocinnamate to the pharmaceutically interesting racemic β‐aldehyde. High regioselectivities of 88–93 % to the β‐aldehyde were obtained with various phosphine ligand‐free rhodium complexes.
Hannah Bork   +5 more
wiley   +1 more source

A Green Hunsdiecker Reaction of Cinnamic Acids

open access: yesJournal of the Brazilian Chemical Society, 2013
Tribromo- and trichloroisocyanuric acids react with cinnamic acids in NaOH/H2O/Et2O at room temperature to produce (E)-2-halostyrenes regioselectively in 25-95% yield. Mechanism studies using Hammett correlations and DFT (density functional theory) calculations have shown that this reaction has as rate determining step the electrophilic addition of ...
Sodré, Leonardo R.   +2 more
openaire   +4 more sources

Role of the small intestine, colon and microbiota in determining the metabolic fate of polyphenols [PDF]

open access: yes, 2017
(Poly)phenols are a large group of compounds, found in food, beverages, dietary supplements and herbal medicines. Owing to their biological activities, absorption and metabolism of the most abundant compounds in humans are well understood.
Actis-Goretta   +182 more
core   +1 more source

Regioselective Hydroformylation of α,β‐Unsaturated Esters: Impact of Reaction Parameters & Reaction Optimization

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 19, May 27, 2025.
The hydroformylation of methyl 4‐chlorocinnamate exhibited either high values for regioselectivity (96 %) or selectivity (78 %) for the β‐aldehyde 2 a depending on pressure, CO/H2 composition and temperature in a design of experiments approach. Expanding the substrate scope gave insights into the structure‐activity relationship revealing a significant ...
Hannah Bork, Harald Gröger
wiley   +1 more source

Structural Insights and Advanced Spectroscopic Characterization of Thiazolothiazoles: Unveiling Potential for Optoelectronic and Sensing Applications [PDF]

open access: yesarXiv
Thiazolothiazoles (TzTz) represent a class of compounds with distinctive structural motifs and exceptional optical properties, positioning them as promising candidates for breakthroughs in optoelectronic and sensing technologies. X-ray crystallographic analyses of TzTz units symmetrically substituted with functional groups such as imidazole, o-vanillin,
arxiv  

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