Results 21 to 30 of about 6,535 (185)
Acta Crystallographica Section E, 2012 The title compound, C16H12O2, is a coumarin which was isolated from stones of the Chinese traditional medicine Clausena lansium. The pyrone ring is almost planar, with a mean deviation of 0.0135 (4) Å. The benzene ring (A) of
Guo-Cai Wang +4 more
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Open Agriculture, 2023 The antifungal activity of Trichoderma hamatum K01 to control Colletotrichum gloeosporioides C01 was recorded. Pathogenicity of C. gloeosporioides C01 on citrus leaves was confirmed by the Koch postulate. T.
Phal Pheaktra +2 more
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Molecules, 2000 Reaction of 4-hydroxy-6-methyl-2-pyrone (1a) as well as 4-hydroxy-6-methyl-2(1H)-pyridones (1b-d) with arylmethylene malononitriles or arylmethylene methyl cyanoacetates (2a-h) leads to the formation of the very stable 5,6-fused bicyclic 2-amino-4Hpyran ...
Dieter Heber +2 more
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New Sorbicillinoids from the Mangrove Endophytic Fungus Trichoderma reesei SCNU-F0042
Marine Drugs, 2023 Three new dimeric sorbicillinoids (1–3) and one new 3,4,6-trisubstituted α-pyrone (5), along with seven analogues (4 and 6–11), were isolated from the mangrove endophytic fungus Trichoderma reesei SCNU-F0042 under the guidance of molecular networking ...
Jialin Li +5 more
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Antifungal Constituents from the Roots of Piper dilatatum Rich.
Journal of Chemistry, 2013 The compounds (+)-(7S,8R)-epoxy-5,6-didehydrokavain (1), flavokavain B (2), β-sitosterol (3), and stigmasterol (4) are reported here as chemical constituents of Piper dilatatum Rich. (Piperaceae).
Ruilan Alves dos Santos +6 more
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A New Synthesis of 2-Pyrones [PDF]
Bulletin of the Chemical Society of Japan, 1975 Abstract The reaction of sodium salt of penta-2,4-dienoic acids with lithium chloropalladite in a polar solvent such as water led to the formation of 2-pyrone derivatives.
Taeko Izumi, Akira Kasahara
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3-(9H-Carbazol-9-yl)-2H-chromen-2-one
Acta Crystallographica Section E, 2011 The title compound, C21H13NO2, was prepared as an example of a new synthesis of carbazoles from a cyclic dibenzo-iodolium salt via a twofold Pd-catalysed arylation of a primary amine.
Julien Letessier +2 more
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Acta Crystallographica Section E, 2013 In the title compound, C19H20N2O6, the pyrone and pyran rings adopt envelope conformations with the same common C atom as the flap, the dihedral angle between the planes of the remaining ring atoms being 68.27 (4)°.
G. Jagadeesan +3 more
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Acta Crystallographica Section E, 2014 In the title compound, C30H28N2O6, the pyran ring adopts a slightly distorted half-chair conformation and the pyrone ring adopts an envelope conformation, with the C atom bearing the carboxylate group as the flap. The pyrazole ring [maximum deviation = 0.
V. Vinayagam +3 more
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