Results 1 to 10 of about 214 (113)

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 Schäberle
exaly   +4 more sources

Bis-naphtho-γ-pyrones from Fungi and Their Bioactivities

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 ...
Daowan Lai, Ali Wang, Ligang Zhou
exaly   +3 more sources

Natural Dibenzo-α-Pyrones and Their Bioactivities

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 ...
Daowan Lai, Ligang Zhou, Ziling Mao
exaly   +3 more sources

Atom-Economic Synthesis of 4-Pyrones from Diynones and Water

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 ...
Hengshan Wang, Teng Qinghu, Ying-Ming Pan   +2 more
exaly   +3 more sources

Two New Bioactive α-Pyrones from Hypericum japonicum

Molecules, 2016
Hypericum japonicum (Guttiferae), a type of annual or perennial herb, has been historically applied to cure infectious hepatitis, acute and chronic hepatitis, gastrointestinal disorder, and internal hemorrhage.
Kai-Ping Wang, Jinwen Zhang, Yongbo Xue   +2 more
exaly   +3 more sources

Saccharomonopyrones A–C, New α-Pyrones from a Marine Sediment-Derived Bacterium Saccharomonospora sp. CNQ-490

Marine Drugs, 2017
Intensive study of the organic extract of the marine-derived bacterium Saccharomonospora sp. CNQ-490 has yielded three new α-pyrones, saccharomonopyrones A–C (1–3).
Heonjoong Kang, Tae Gu Lee, Sang-Jip Nam   +2 more
exaly   +3 more sources

4-Hydroxy-2-pyrones: Synthesis, Natural Products, and Application

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, Dmitrii L. Obydennov, Sergei A. Usachev, Vyacheslav Y. Sosnovskikh   +3 more
doaj   +1 more source

2-Aryl-6-Polyfluoroalkyl-4-Pyrones as Promising R^F-Building-Blocks: Synthesis and Application for Construction of Fluorinated Azaheterocycles

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, Diana I. Nigamatova, Daria K. Mysik, Nikita A. Naumov, Dmitrii L. Obydennov, Vyacheslav Y. Sosnovskikh   +5 more
doaj   +1 more source

2-(2-(Dimethylamino)vinyl)-4H-pyran-4-ones as Novel and Convenient Building-Blocks for the Synthesis of Conjugated 4-Pyrone Derivatives

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, Diana I. Nigamatova, Alexander S. Shirinkin, Oleg E. Melnikov, Vladislav V. Fedin, Sergey A. Usachev, Alena E. Simbirtseva, Mikhail Y. Kornev, Vyacheslav Y. Sosnovskikh   +8 more
doaj   +1 more source

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
openaire   +3 more sources