Results 11 to 20 of about 17,659,431 (225)

Two new α-pyrone-containing polyketides isolated from the fungus Aspergillus aureoterreus

, 2022
Two undescribed α-pyrone-containing polyketide derivatives designated aurovertins V (1) and W (2), and a known analogue (3), were isolated from the fungus Aspergillus aureoterreus.
Beiping Zhou (12406809), Qingyi Tong (1677109), Honghui Zhu (296188), Yi Zang (1713565)   +3 more
core   +1 more source

Bioactive Alpha-Pyrone and Phenolic Glucosides from the Marine-Derived Metarhizium sp. P2100

Journal of Fungi, 2022
Glycoside compounds have attracted great interest due to their remarkable and multifarious bioactivities. In this study, four hitherto unknown 4-methoxy-β-D-glucosyl derivatives were obtained and identified from the marine-derived fungus Metarhizium sp ...
Zhong-Lian Ma, Zhi-Pu Yu, Yao-Yao Zheng, Na Han, Ya-Hui Zhang, Shu-Yue Song, Jun-Qiu Mao, Jiao-Jiao Li, Guang-Shan Yao, Chang-Yun Wang   +9 more
doaj   +1 more source

A Short Synthesis of Delavatine A Unveils New Insights into Site-Selective Cross-Coupling of 3,5-Dibromo-2-pyrone [PDF]

, 2019
The recognition of latent symmetry in delavatine A has enabled a short synthesis of the natural product starting from 3,5-dibromo-2-pyrone. The concise synthetic route features a cascade process involving a 6π electrocyclization to construct the indane ...
Kevlishvili, Ilia, Ilia Kevlishvili, Hugelshofer, Cedric Lorenz, Ilia Kevlishvili (4633084), Vignesh Palani, Peng Liu, Richmond Sarpong, Palani, Vignesh, Cedric L. Hugelshofer (1702093), Peng Liu (120506), Sarpong, Richmond, Richmond Sarpong (1307157), Liu, Peng, Vignesh Palani (2573557), Cedric L. Hugelshofer   +14 more
core   +1 more source

Greener assembly of Pyrano[3,4-b]pyran derivative as a novel Hg2+ ion chemosensor

Optical Materials: X, 2022
Novel pyrano[3,4-b]pyran derivatives were designed through a greener multicomponent reaction of 4-hydroxy-6-methyl-2-pyrone, various aldehydes, and malononitrile using SrFe12O19, in an expeditious reaction.
Fatemeh Mohajer, Fatemeh Soltani HasanKiadeh, Ghodsi Mohammadi Ziarani, Marziyeh Zandiyeh, Alireza Badiei, Rajender S. Varma   +5 more
doaj   +1 more source

Profiling the Major Aroma-Active Compounds of Microwave-Dried Jujube Slices through Molecular Sensory Science Approaches

Foods, 2023
To discriminate the aroma-active compounds in dried jujube slices through microwave-dried treatments and understand their sensory attributes, odor activity value (OAV) and detection frequency analysis (DFA) combined with sensory analysis and analyzed ...
Xinhuan Yan, Shaoxiang Pan, Xuemei Liu, Mengnan Tan, Xiaodong Zheng, Wenyu Du, Maoyu Wu, Ye Song   +7 more
doaj   +1 more source

Effects of Acid Dissociation and Ionic Solutions on the Aggregation of 2-Pyrone-4,6-dicarboxylic Acid. [PDF]

ACS Omega
The conversion of lignin can produce biomass-derived aromatic compounds such as 2-pyrone-4,6-dicarboxylic acid (PDC), which is a potential sustainable precursor of bioplastics.
Li J, Van Lehn RC.
europepmc   +2 more sources

Antibacterial Polyketides from the Marine Alga-Derived Endophitic Streptomyces sundarbansensis: A Study on Hydroxypyrone Tautomerism

Marine Drugs, 2013
Polyketide 13 [=2-hydroxy-5-((6-hydroxy-4-oxo-4H-pyran-2-yl)methyl)-2- propylchroman-4-one] and three related known compounds 7, 9 and 11 were obtained and structurally characterized from Streptomyces sundarbansensis strain, an endophytic actinomycete ...
Ines Mancini, Andrea Defant, Ibtissem Djinni, Mouloud Kecha   +3 more
doaj   +1 more source

Transition-metal-free [3+3] annulation reaction of sulfoxonium ylides with cyclopropenones for the synthesis of 2-pyrones

Green Synthesis and Catalysis, 2020
An efficient and practical synthetic approach was developed for the tandem synthesis of trisubstituted 2-pyrone derivatives from sulfoxonium ylides and cyclopropenones. This [3+3] annulation reaction was carried out under transition-metal-free conditions.
Maoyao He, Yuncan Chen, Yi Luo, Jianglian Li, Ruizhi Lai, Zengbao Yang, Yuerong Wang, Yong Wu   +7 more
doaj   +1 more source

Renewable synthesis of branched diols as polymer precursors from biomass-derived lactones and 2-pyrones

Materials Science for Energy Technologies, 2022
Hydric alcohols are important synthetic intermediates used to manufacture polymer, fine chemicals, and commodity products. Recent environmental problems due to fossil fuel-based non-degradable products have call for the advancement in research towards ...
Md. Imteyaz Alam, Pramod Kumar, Ashish Bohre, M. Ali Haider   +3 more
doaj   +1 more source

5-Hydroxy-2-methyl-4H-pyran-4-one

Acta Crystallographica Section E, 2009
The title compound, C6H6O3, is a member of the pyrone family. The molecules are planar (r.m.s. deviation of the asymmetric unit is 0.0248 Å, whereas that of the dimer is 0.0360 Å) and they are dimerized due to intermolecular O—
Bernhard K. Keppler, Ahmad Awan Shafiq, M. Nawaz Tahir, Christian G. Hartinger, Muhammad Ashraf Shaheen   +4 more
doaj   +1 more source