Results 81 to 90 of about 28,625 (273)

Exploring the Discrepancies in the Biological Activities of Extracts From Guadua angustifolia Var. Bicolor Londoño Collected in Two Different Sites

Chemistry &Biodiversity, EarlyView.
ABSTRACT Guadua angustifolia var. bicolor Lodoño is a Colombian bamboo species that has shown promising medicinal properties. This study aims to investigate the differences in the chemical composition and biological activity of extracts from two different populations of G. angustifolia var. bicolor, collected in Bauru and Tatuí, Brazil.
João Kazlauckas, Maria Tereza Grombone Guaratini, Paulo Roberto H. Moreno   +2 more
wiley   +1 more source

Eugenia brasiliensis: Analysis of the Chemical Profile and Evaluation of Cytotoxic Potential

Chemistry &Biodiversity, EarlyView.
Leaves of Eugenia brasiliensis were dried, crushed and macerated with polarity increment. The antiporliferative and anti‐migratory potential and the cell cycle were evaluated. 28 compounds were tentatively identified by mass sceptrometry. ABSTRACT This work evaluated the antiproliferative potential of Eugenia brasiliensis leaf extracts against the HeLa
Giovana G. F. V. de Oliveira, Milena F. Longue, Letícia M. R. Pescinelli, Thiago S. Charret, Thalya S. R. Nogueira, Mariana T. M. Pereira, Ivo J. C. Vieira, Lucas S. Abreu, Vinicius D. B. Pascoal, Aislan C. R. F. Pascoal   +9 more
wiley   +1 more source

Designing Enzymatic Reactivity with an Expanded Palette

ChemBioChem, EarlyView.
Innovation in biocatalysis is rapidly increasingly the diversity of catalytic reactivity that can be mediated by enzymes, addressing a key bottleneck for their widespread adoption in industrial chemical synthesis. A key approach to this is building enzymes with unnatural catalytic components that provide an expanded palette with new possibilities for ...
Reuben B. Leveson‐Gower
wiley   +1 more source

Design, synthesis and antimicrobial activities of novel ferrocenyl and organic chalcone based sulfones and bis-sulfones

Arabian Journal of Chemistry, 2019
A variety of different novel functionalized ferrocenyl chalcone and organic chalcone based sulfones and bis-sulfones were synthesized in excellent yield under mild reaction condition.
Naseem Ahmed, Naveen Kumar Konduru, Mohammad Owais   +2 more
doaj  

Synthesis of Chalcone and Flavanone Compound Using Raw Material of Acetophenone and Benzaldehyde Derivative

Indonesian Journal of Chemistry, 2010
Synthesis of flavanoid compounds of chalcone and flavanone groups have been conducted. Flavanoid Is one of the group natural products which is mostly found in plants and have been proved to have physiological activity as drug.
Ismiyarto Ismiyarto, Sabirin Matsjeh, Chairil Anwar   +2 more
doaj   +1 more source

Hydrazine as a Reducing Agent in Catalytic Transfer Hydrogenation Processes: Up‐to‐Date Overview Approaches

ChemCatChem, Volume 17, Issue 8, April 15, 2025.
Transfer hydrogenation serves as an alternative platform to promote facile organic transformation in a selective and clean manner, due to its atomic economy, high efficiency, and sustainability. Hydrazine hydrate is one of the common reducing agents used in the selective transfer hydrogenation/reduction methodologies.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

The complex of Plasmodium falciparum falcipain-2 protease with an (E)-chalcone-based inhibitor highlights a novel, small, molecule-binding site

Malaria Journal, 2019
Background Malaria kills over 400,000 people each year and nearly half the world’s population live in at-risk areas. Progress against malaria has recently stalled, highlighting the need for developing novel therapeutics.
Jonathan M. Machin, Anastassia L. Kantsadi, Ioannis Vakonakis   +2 more
doaj   +1 more source

Highly effective, regiospecific reduction of chalcone by cyanobacteria leads to the formation of dihydrochalcone: two steps towards natural sweetness

Microbial Cell Factories, 2017
Background Chalcones are the biogenetic precursors of all known flavonoids, which play an essential role in various metabolic processes in photosynthesizing organisms. The use of whole cyanobacteria cells in a two-step, light-catalysed regioselective bio-
Beata Żyszka, Mirosław Anioł, Jacek Lipok   +2 more
doaj   +1 more source

PICRATES OF CHALCONES AS ORGANIC MOLECULAR COMPOUNDS [PDF]

, 1934
Tei-ichi Asahina
openalex   +1 more source

Ru‐Catalyzed Alkene Hydrophosphination: Correlating Substrate Scope with An Outer‐Sphere Mechanism

ChemCatChem, EarlyView.
The rate of this outer‐sphere hydrophosphination catalyzed by a Cp*Ru complexdepends on the speed of either conjugate addition A delicate balance between these two possible turnover‐limiting steps is sensitive to the structure and electronic character of both the alkene and phosphine substrates, with big impacts on activity and selectivity.
Jin Yang, Afsaneh Akar, Alexis M. Kellinghusen, Lisa Rosenberg   +3 more
wiley   +1 more source