pyran ring

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• pyran — /puy ran, puy ran /, n. Chem. either of two compounds having the formula C5H6O, containing one oxygen and five carbon atoms arranged in a six membered ring. [1900 05; PYR(ONE) + an, var. of ANE] * * * ▪ chemical compound       any of a class of… …   Universalium

• pyran — [pī′ran΄, pī ran′] n. [ PYR(ONE) + AN] any of a group of closed chain compounds containing a ring, C5H6O, of one oxygen atom and five carbon atoms …   English World dictionary

• Pyran — Chembox new ImageFileL1=2H Pyran.png ImageSizeL1=75px ImageFileR1=Pyran3d.png ImageSizeR1=100px ImageFileL2=4H Pyran.png ImageSizeL2=75px ImageFileR2=4HPyran3d.png ImageSizeR2=100px IUPACName=Pyran OtherNames=2 H Pyran, 4 H Pyran Section1=… …   Wikipedia

• Pyran — Pyrane Name 2H Pyran 4H Pyran Andere Namen α Pyran Oxa 2,4 cyclohexadien γ Pyran, Oxa 2,5 cyclohexadien Strukturformel …   Deutsch Wikipedia

• pyran — ˈpīˌran noun ( s) Etymology: International Scientific Vocabulary pyr + an : either of two parent cyclic compounds C5H6O that contain five carbon atoms and one oxygen atom in the ring: a. : the alpha isomer called also 2H pyran …   Useful english dictionary

• pyran — A cyclic compound that may be considered the formal parent of sugars with an oxygen bridge from carbon atoms 1–5 (the pyranoses). * * * py·ran pī(ə)r .an n either of two cyclic compounds C5H6O that contain five carbon atoms and one oxygen atom in …   Medical dictionary

• pyran — noun Etymology: International Scientific Vocabulary Date: 1904 either of two cyclic compounds C5H6O that contain five carbon atoms and one oxygen atom in the ring …   New Collegiate Dictionary

• pyran — noun Any of a class of heterocyclic compounds containing a ring of five carbon atoms and an oxygen atom; especially the simplest one, CHO. Syn: furan …   Wiktionary

• Pyran — Py|ran das; s, e (meist Plur.) <zu ↑pyro... u. ↑...an> sechsgliedrige ↑heterozyklische Verbindung mit einem Sauerstoffatom im Ring (Chem.) …   Das große Fremdwörterbuch

• pyran — n. either of two compounds comprised of one oxygen atom and five carbon atoms arranged in a ring (Chemistry) …   English contemporary dictionary

• pyran — py•ran [[t]ˈpaɪ ræn, paɪˈræn[/t]] n. chem. either of two compounds having the formula C5H6O, containing one oxygen and five carbon atoms arranged in a six membered ring • Etymology: 1900–05; pyr(one) a heterocyclic ketone (< Gk pŷr fire+ one)… …   From formal English to slang