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pyrone

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pyrone
pyrone Chem. (ˈpaɪərəʊn) [ad. G. pyron (Haitinger & Lieben 1885, in Sitzungsber. d. österreichischen Akad. d. Wissensch. in Wien XCI. (Abt. ii.) 923): see pyro- and -one.] Either of two unsaturated heterocyclic compounds, C5H4O2, which are mono-keto derivatives of the pyrans; spec. CH:CH·O·CH:CH·CO ... Oxford English Dictionary
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Pyrone
There are two isomers denoted as 2-pyrone and 4-pyrone. The 2-pyrone (or α-pyrone) structure is found in nature as part of the coumarin ring system. 4-Pyrone (or γ-pyrone) is found in some natural chemical compounds wikipedia.org
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4-Pyrone
4-Pyrone (γ-pyrone or pyran-4-one) is an unsaturated cyclic chemical compound with the molecular formula C5H4O2. It is isomeric with 2-pyrone. Preparation 4-Pyrone is prepared via the thermal decarboxylation of chelidonic acid. wikipedia.org
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2-Pyrone
Oxovitisin A, a pyranoanthocyanin found in wine, also contains a 2-pyrone element. 6-Amyl-α-pyrone (6PP) is a derivative of 2-pyrone, found in animal See also Pyrone References wikipedia.org
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6-Amyl-α-pyrone
6-Amyl-α-pyrone, also 6-pentyl-2-pyrone or 6PP, is an unsaturated lactone molecule. wikipedia.org
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2-pyrone-4,6-dicarboxylate lactonase
The enzyme 2-pyrone-4,6-dicarboxylate lactonase (EC 3.1.1.57, LigI) catalyzes the reversible hydrolytic reaction 2-oxo-2H-pyran-4,6-dicarboxylate + H2O More specifically, the hydrolytic water molecule is activated by the transfer of a proton to Asp-248 whereas the carbonyl group of the 2-pyrone-4,6-dicarboxylate wikipedia.org
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Coeloginin
This molecule has a phenanthro[4,5-bcd]pyrone structure. References Phenanthrenoids Coelogyne wikipedia.org
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吡喃酮
吡喃酮（Pyrone）是吡喃的酮类衍生物，是一类六元的含氧杂环化合物。与吡喃一样，根据环中双键和羰基的位置不同，吡喃酮可以有两个异构体：和γ-吡喃酮。 吡喃酮的结构广泛存在于天然产物之中。香豆素是含有α-吡喃酮结构的最重要的化合物。 wikipedia.org
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مالتول
الأسماء المرادفة 3-Hydroxy-2-methyl-(1,4-pyran) ; 3-hydroxy-2-methyl-4-pyrone ; E636 ; larixinic acid ; 2-methyl-3-hydroxy-4-pyrone ; 2-methyl pyromeconic wikipedia.org
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C5H4O2
DISPLAYTITLE:C5H4O2}} The molecular formula C5H4O2 (molar mass: 96.085 g/mol) may refer to: Furfural (2-furaldehyde) 3-Furaldehyde Protoanemonin Pyrones 2-Pyrone 4-Pyrone Molecular formulas wikipedia.org
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门策吡喃酮合成
门策吡喃酮合成（Mentzer pyrone synthesis）指多元酚和 β-酮酯发生热环化缩合作用得到羟基色酮和羟基香豆素。 例如，2,4-二甲氧基苯酚与苯甲酰乙酸乙酯在280℃加热8小时得6,8-二甲氧基黄酮。 可用丙二酸酯代替β-酮酯，但丙二酸酯与酚类缩合时只生成羟基香豆素。 wikipedia.org
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Triacetic acid lactone
Triacetic acid lactone (TAL; 4-hydroxy-6-methyl-2-pyrone) is an organic compound derived enzymatically from glucose. Biosynthesis The microbial synthesis of triacetic acid lactone requires the enzyme 2-pyrone synthase (2-PS). wikipedia.org
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Oxovitisin A
Oxovitisin A is an oxovitisin, a type of pyranoanthocyanin with a pyranone (2-pyrone) component. It is found in aged Port wines. wikipedia.org
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Δ-Decalactone
From biomass, it can be produced via the hydrogenation of 6-amyl-α-pyrone. wikipedia.org
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Oxovitisin
Oxovitisins are a type of pyranoanthocyanin with a pyranone (2-pyrone) component found in aged Port wines. wikipedia.org
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