pyrone


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pyrone

(ˈpaɪrəʊn; paɪˈrəʊn)
n
1. (Elements & Compounds) either of two heterocyclic compounds that have a ring containing five carbon atoms and one oxygen atom with two double bonds and a second oxygen atom attached to a carbon atom in either the ortho-position (alpha pyrone) or the para-position (gamma pyrone)
2. (Elements & Compounds) any one of a class of compounds that are substituted derivatives of a pyrone
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Meanwhile, Qura-tul-Ain D/o Mohammad Mansha got degree in the subject of Chemistry after approval of her thesis titled "Synthetic Studies of Condensed Pyrone Derivatives".
Generally the antioxidant capacity of anthocyanins is associated with the number of free hydroxyls around the pyrone ring, but this is not always true [24].
2013) also reported that pyrone polyketides found in the cone snail Conus rolani are synthesized by bacteria.
Presence of surface functional groups such as carboxyl, lactone, phenol, carbonyl, ether, pyrone and chromene gives activated carbon an acid-base character (Rodriguez-Reinoso and Molina-Sabio, 1998).
Synthesis of the desired pyrone was accomplished utilizing a Jacobsen asymmetric hetero-Diels-Alder reaction between Danishefsky's diene and an optically pure aldehyde prepared in two steps from chiral pool.
Variation in pyrone production, lytic enzymes and control of Rhizoctonia root rot of wheat among single-spore isolates of Trichoderma koningii.
pyrone type, chromene, diketone, or quinone groups) and delocalised [pi]-electrons of the basal planes are assumed to have a basic nature (Contescu et al.
It is a member of a group of naturally occurring compounds, the flavonoids, which have a common flavone nucleus composed of two benzene rings, linked through a heterocyclic pyrone ring.
Recent studies have involved nitrogen and oxygen heterocycles, particularly compounds of the pyridine and pyrone families, and the techniques of chromatography (including HPLC), mass spectrometry, GCMS, chemical ionization mass spectrometry and NMR (both 1H and 13C) are used extensively.
Hydrochar had high atomic O/C and H/C ratios, mainly attributed to the presence of groups such as ether, quinone, and pyrone, although more reactive groups (e.
Variation in pyrone production, lytic enzymes and control of rhizoctonia root rot wheat among single-spore isolates ofTrichoderma koningi.
niger isolates are known to produce quinone and cytotoxic pyrone compounds (Sadananda et al.