An Overview of α-Pyrones as Phytotoxins Produced by Plant Pathogen Fungi [PDF]
MoleculesCrop diseases negatively affect the quality and quantity of agricultural products, with significant economic and social consequences. These problems become emergencies in a world where the safe production of food for human health is becoming increasingly
Antonio Evidente
doaj +2 more sources
Phytochemical Profiling, Antioxidant and Cognitive-Enhancing Effect of Helichrysum italicum ssp. italicum (Roth) G. Don (Asteraceae) [PDF]
Plants, 2023 This study aimed at the evaluation of the antioxidant and cognitive-enhancing effect of methanol–aqueous extract from Helichrysum italicum ssp. italicum aerial parts.
Reneta Gevrenova +6 more
doaj +2 more sources
Goondapyrones A–J: Polyketide α and γ Pyrone Anthelmintics from an Australian Soil-Derived Streptomyces sp. [PDF]
AntibioticsAn investigation of ×19 soil samples collected under the auspices of the Australian citizen science initiative, Soils for Science, returned ×559 chemically dereplicated microbial isolates, of which ×54 exhibited noteworthy anthelmintic activity against ...
Shengbin Jin +7 more
doaj +2 more sources
Eight new α-pyrone and γ-butenolide derivatives from the plant endophytic fungus Diaporthe sp. CCY4 [PDF]
Natural Products and BioprospectingFive new α-pyrones, diaporpyrones G-K (1–5) and three new γ-butenolide derivatives, porbutenolides A-C (6–8), along with seven known compounds (9–15), were isolated from the culture extract of the endophytic fungus Diaporthe sp. CCY4.
Jie-Chun Zeng +4 more
doaj +2 more sources
The chemistry of Brazilian Lauraceae XLVI. Notes on Aniba species [PDF]
Acta Amazonica, 1977 Aniba affinis, A. cylindriflora and A. mas (Lauraceae) were found to contain respectively benzofuranoid (and a previously unknown bicyclo [3, 2, 1] octanoid) neolignans, 6-styryl-2-pyrones and 6-styryl-4-methoxy-2-pyrones.
Aura M. P. de Diaz +5 more
doaj +1 more source
The chemistry of Brazilian Lauraceae. LXV. 5, 7, 8, 3', 4', 5' - Hexamethoxyflavone from an Aniba species [PDF]
Acta Amazonica, 1982 Aniba species (Lauraceae) are characterized by the presence of neolignans or of 6-aryl (or 6-styryl-) 2-pyrones. Flavonoids occur either together with pyrones or, in rare cases, as predominant micromolecular type. The branch wood of an Aniba species from
Sergio de H. Cavalcante +3 more
doaj +1 more source
Synthesis of cyercenes and yangonin by a pyrone aldol protocol
Results in Chemistry, 2021 A number of 6-alkenyl pyrones were synthesized using an aldol reaction followed by a tosylate elimination sequence.
Kyle Podolak, George A. Kraus
doaj +1 more source
استخراج و خالص سازی ماده موثره دارویی γ-Pyrones (خلین و ویسناژین) از گیاه Ammi Visnaga L. [PDF]
زیستشناسی کاربردی, 2023 گیاه Ammi Visnaga Lam. (تیره جعفری)، از جمله گیاهان دارویی ارزشمند بومی کشور می باشد که حاوی ماده موثرهدارویی γ-Pyrones (عمدتا محتوی خلین و ویسناژین) است.
محمد حاجی ابوالحسنی
doaj +1 more source
Coumarins, Xanthones and Related Compounds
Molecules, 2016 It has long been known that coumarins (γ-pyrones) and xanthones (α-pyrones) together form a large class of naturally occurring compounds exhibiting a wide range of biological activities.[...]
Pascal Richomme
doaj +1 more source
Indenopyrans – synthesis and photoluminescence properties
Beilstein Journal of Organic Chemistry, 2016 New indeno[1,2-c]pyran-3-ones bearing different substituents at the pyran moiety were synthesized and their photophysical properties were investigated. In solution all compounds were found to be blue emitters and the trans isomers exhibited significantly
Andreea Petronela Diac +6 more
doaj +1 more source