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. 2001.

Look at other dictionaries:

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

  • 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 — /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 — Py|ran [↑ Pyron u. ↑ an (4)], das; s, e: nach Lage der Doppelbindungen als 2H oder α Pyran u. 4H oder γ Pyran zu unterscheidende zweifach ungesättigte Sauerstoff Heterocyclen C5H6O, von denen bzw. von deren Ketonen (↑ …   Universal-Lexikon

  • 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 — piranas statusas T sritis chemija apibrėžtis Šešianaris heterociklinis junginys. formulė C₅H₆O atitikmenys: angl. pyran rus. пиран …   Chemijos terminų aiškinamasis žodynas

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

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