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pyran

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pyran
pyran Chem. (ˈpaɪəræn) Also -ane (-eɪn). [f. pyrone + -an, -ane.] a. A heterocyclic compound, C5H6O, having a doubly unsaturated six-membered ring consisting of five carbon atoms and one oxygen atom; two isomers (differing in the positions of the double bonds) are possible, only one of which, CH2CH:... Oxford English Dictionary
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Dihydropyran
In organic chemistry, dihydropyran refers to two heterocyclic compounds with the formula C5H8O: 3,4-Dihydro-2H-pyran 3,6-dihydro-2H-pyran Nomenclature See also Pyran Tetrahydropyran References wikipedia.org
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pyranose
pyranose Chem. (ˈpaɪər-, ˈpɪrənəʊz) [f. pyran + -ose2.] A structure containing a saturated pyran ring, frequently assumed by sugars; a sugar having this structure. Freq. attrib.1927 Goodyear & Haworth in Jrnl. Chem. Soc. 3141 On the basis of the conclusions now reached, the formula (A) must be accep... Oxford English Dictionary
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Coelogin
This molecule has a phenanthro[4,5-bcd]pyran structure. References Phenanthrenoids Coelogyne wikipedia.org
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Pyranocoumarin
Pyranocoumarins are a class of chemical compounds that have a core structure that consists of a pyran ring fused to a coumarin. In the biosyntheses of pyranocoumarins, the pyran ring is formed via the methylerythritol phosphate pathway and the coumarin is derived from the shikimate wikipedia.org
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Benzopyran
Benzopyran is a polycyclic organic compound that results from the fusion of a benzene ring to a heterocyclic pyran ring. benzopyran is encountered in the reduced state, in which it is partially saturated with one hydrogen atom, introducing a tetrahedral CH2 group in the pyran wikipedia.org
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Tetrahydropyran
It is named by reference to pyran, which contains two double bonds, and may be produced from it by adding four hydrogens. See also Pyran Dioxane and Trioxane, which have two and three oxygen atoms as part of their six-membered rings respectively References Protecting groups wikipedia.org
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4H (disambiguation)
Metrobus route, in the United States 4H-pyran 4H-SiC, one of the polymorphs of silicon carbide Hydrogen-4 (4H, or quadrium), an isotope of hydrogen 4H, 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 The systematic name of this enzyme is 2-oxo-2H-pyran-4,6-dicarboxylate lactonohydrolase. wikipedia.org
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2H
the Aptera 2 Series SSH 2H (WA), alternate designation for Washington State Route 290 2H, a designation for chemicals with two hydrogen molecules 2H-pyran , a form of Pyran 2H-1-benzopyran, a form of Benzopyran 2H-pyran-2-one, a form of 2-Pyrone See also H2 (disambiguation) wikipedia.org
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Pyranoflavonoid
The pyranoflavonoids are a type of flavonoids possessing a pyran group. Cyclocommunin is another natural pyranoflavonoid. wikipedia.org
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Cladiella krempfi
Secondary metabolites Four unusual diterpenes with novel pyran rings have been found in this soft coral, and these compounds also accumulate in the tissues wikipedia.org
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C5H6O
C5H6O (molar mass: 82.10 g/mol, exact mass: 82.0419 u) may refer to: Cyclopentenone, or 2-cyclopentenone Methylfuran 2-Methylfuran 3-Methylfuran Pyran wikipedia.org
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Rose oxide
Chemistry Rose oxide is an organic compound of the pyran class of monoterpenes. wikipedia.org
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Aldos-2-ulose dehydratase
This enzyme catalyses the following chemical reaction 1,5-anhydro-D-fructose 2-hydroxy-2-(hydroxymethyl)-2H-pyran-3(6H)-one + H2O (overall reaction) anhydro-D-fructose 1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose + H2O (1b) 1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose 2-hydroxy-2-(hydroxymethyl)-2H-pyran wikipedia.org
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