Results 61 to 70 of about 4,197 (216)
Asymmetric Diels−Alder Reactions of 2-Pyrones with a Bifunctional Organic Catalyst [PDF]
, 2016 The reactions of 2-pyrones with electron-deficient dienophiles constitute a synthetically useful class of Diels−Alder reaction. By exploring cinchona alkaloid-derived organic molecules as acid−base bifunctional catalysts, we successfully developed the ...
Yong-Qiang Wang (1627024) +5 more
core +5 more sources
PLoS ONE, 2021 Aspergillus niger metabolites exhibited a wide range of biological properties including antioxidant and neuro-protective effects and some physical properties as green synthesis of silver nanoparticles AgNP. The present study presents a novel evidence for
Ghada Mahmoud Abdelwahab +5 more
doaj +1 more source
Two Pyrones with Antibacterial Activities from
Natural Product Communications, 2016 A new pyrone derivative, malakavalactone ( 2 ), was isolated from the acetone extract of Alpinia malaccensis fruits, along with a known compound kavalactone ( 1 ).
Tita Juwitaningsih +2 more
doaj +1 more source
Cumarinas do gênero Polygala: isolamento, estrutura e propriedades [PDF]
, 2010 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.A espécie Polygala sabulosa, conhecida popularmente como “Timuto Pinheirinho” é uma pequena erva que cresce no planalto serrano do sul do
Garcia, Giulliani Sachinelli
core
Antibacterial and Anti-Biofilm Activity of Pyrones from a Pseudomonas mosselii Strain
Antibiotics, 2022 The emergence of drug resistant microbes over recent decades represents one of the greatest threats to human health; the resilience of many of these organisms can be attributed to their ability to produce biofilms.
Xueling Liu +4 more
doaj +1 more source
Chemistry &Biodiversity, Volume 23, Issue 6, June 2026.An Epicoccum fungus was isolated from gut of larvae of the butterfly Dione juno juno that feeds intensively on leaves of Passifloras. This fungus produces hydroxyanthraquinones that moderately inhibits growth of some Bacillus that coexist with the fungus in the insect gut, suggesting that it is probably important for microbial embalance in gut flora ...
Jessica Teixeira Dias +5 more
wiley +1 more source
Isochromans and α‑Pyrones from Penicillium corylophilum [PDF]
, 2016 Seven new secondary metabolites, four isochromans (1–4) and three α-pyrones (5–7), were isolated from Penicillium corylophilum DAOM 242293 collected from a damp building in Halifax, Canada.
J. David Miller (1840300) +2 more
core +1 more source
Engineering an Acyl‐CoA Ligase With Enhanced Activity Toward Synthetic CoA Alternatives
ChemBioChem, Volume 27, Issue 10, 27 May 2026.Engineering an acyl‐CoA ligase shifts thiol specificity toward inexpensive synthetic thiols such as N‐acetylcysteamine (SNAC), enabling enzymatic generation of acyl‐SNAC starter units that support polyketide biosynthesis. Fatty acyl‐coenzyme A (CoA) thioesters are indispensable intermediates in primary metabolism and essential building blocks for ...
Jared R. Cossin +2 more
wiley +1 more source
The 2-pyrones of Aniba species [PDF]
, 1971 A re-examination of the trunk wood of Aniba parviflora (Meissn.) Mez (Lauraceae) yielded two new constituents, 6-(4′-hydroxy-trans-styryl)-2-pyrone (IVf) and 6-(3′,4′-dihydroxy-trans-styryl-2-pyrone (IVe).
S.Lamêgo Vieira Pinho +9 more
core +1 more source
Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application
European Journal of Organic Chemistry, Volume 29, Issue 19, 22 May 2026.Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley +1 more source