Results 1 to 10 of about 4,197 (216)
Natural Dibenzo-α-Pyrones and Their Bioactivities [PDF]
Molecules, 2014 Natural dibenzo-α-pyrones are an important group of metabolites derived from fungi, mycobionts, plants and animal feces. They exhibit a variety of biological activities such as toxicity on human and animals, phytotoxicity as well as cytotoxic ...
Ziling Mao, Wenxian Sun, Daowan Lai
exaly +4 more sources
Bis-naphtho-γ-pyrones from Fungi and Their Bioactivities [PDF]
Molecules, 2014 Bis-naphtho-γ-pyrones are an important group of aromatic polyketides derived from fungi. They have a variety of biological activities including cytotoxic, antitumor, antimicrobial, tyrosine kinase and HIV-1 integrase inhibition properties, demonstrating ...
Wenxian Sun +2 more
exaly +4 more sources
Atom-Economic Synthesis of 4-Pyrones from Diynones and Water [PDF]
Molecules, 2017 Transition-metal-free synthesis of 4-pyrones via TfOH-promoted nucleophilic addition/cyclization of diynones and water has been developed. This transformation is simple, atom economical and environmentally benign, providing rapid and efficient access to ...
Yan-Li Xu +2 more
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Biosynthesis of α-pyrones [PDF]
Beilstein Journal of Organic Chemistry, 2016 The α-pyrone moiety is a structural feature found in a huge variety of biologically active metabolites. In recent times new insights into additional biosynthetic mechanisms, yielding in such six-membered unsaturated ester ring residues have been obtained.
Till F Schäberle
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4-Hydroxy-2-pyrones: Synthesis, Natural Products, and Application [PDF]
Organics, 2023 4-Hydroxy-2-pyrones are of interest as potential biorenewable molecules for a sustainable transition from biomass feedstock to valuable chemical products.
Vladislav V. Fedin +3 more
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Molecules, 2021 A convenient and general method for the direct synthesis of 2-aryl-6-(trifluoromethyl)-4-pyrones and 2-aryl-5-bromo-6-(trifluoromethyl)-4-pyrones has been developed on the basis of one-pot oxidative cyclization of (E)-6-aryl-1,1,1-trifluorohex-5-ene-2,4 ...
Sergey A. Usachev +5 more
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Molecules, 2022 A straightforward approach for the construction of the new class of conjugated pyrans based on enamination of 2-methyl-4-pyrones with DMF-DMA was developed.
Dmitrii L. Obydennov +8 more
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Pyrones to Pyrans: Enantioselective Radical Additions to Acyloxy Pyrones. [PDF]
ChemInform, 2006 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mukund P, Sibi, Jake, Zimmerman
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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
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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
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