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What (who) is pyrone - definition
ANY HETEROCYCLIC COMPOUND HAVING A SIX-MEMBERED, UNSATURATED RING WITH ONE OXYGEN HETEROATOM AND A CARBONYL GROUP ATTACHED IN 2 OR 4 POSITION
Pyrones; Pyranone; Pyranones
Pyrone
·add. ·noun An unsaturated cyclic compound, C5H4O2, of which two varieties are known, / and /. /-pyrone is the parent substance of several natural yellow dyestuffs.
2-pyrone-4,6-dicarboxylate lactonase
In enzymology, 2-pyrone-4,6-dicarboxylate lactonase () is an enzyme that catalyzes the reversible hydrolytic chemical reaction
coumarin
CHEMICAL COMPOUND
Coumarins; Coumarine; Pyranocoumarins; Coumarinoids; Coumarinoid; 1,2-benzopyrone; Chroman ring; Cumarin
['ku:m?r?n]
¦ noun Chemistry a vanilla-scented organic compound found in many plants.
Origin
C19: from Fr. coumarine, from coumarou, via Port. and Sp. from Tupi cumaru 'tonka bean'.
Wikipedia
Pyrone
Pyrones or pyranones are a class of heterocyclic chemical compounds. They contain an unsaturated six-membered ring containing one oxygen atom and a ketone functional group. 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 such as chromone, maltol and kojic acid.
