pyran
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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-2-one — 2 pyrone Général Nom IUPAC 2H pyran 2 one Synonymes α pyrone, pyran 2 one … Wikipédia en Français
Pyran-4-one — 4 pyrone Général Nom IUPAC 4H pyran 4 one Synonymes γ pyrone … Wikipédia en Français
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
