L'irone est une cétone qui constitue le principe odorant de la racine d'iris, en particulier les variétés cultivées dites "iris de Florence". Elle est présente aussi dans les racines d'autres éridacées.
L'irone donne en perdant sa fonction cétonique un hydrocarbure insaturé, l'irène de composition C13H18.
Portail de la chimie
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Contenu soumis à la licence CC-BY-SA. Source : Article Irone de Wikipédia en français (auteurs)
irone — irone … Dictionnaire des rimes
irone — [ irɔn ] n. f. • v. 1900; de iris (I) ♦ Chim. Principe chimique odorant, présent dans la violette et l iris. ● irone nom féminin Nom générique des cétones présentes dans l essence de violette et dans l essence d iris. ⇒IRONE, subst. fém. CHIM.… … Encyclopédie Universelle
irone — i rone, irones i rones, n. A fragrant liquid substance, a mixture of several isomers of the formula {C14H22O}, forming the essence of the violet fragrance, commonly isolated from orris oil or from the rhizomes of Iris. The main ingredient in… … The Collaborative International Dictionary of English
Irone — [Kurzwort aus Iris und Ketone], Singular Iron das, s, Gruppe von drei isomeren Terpenketonen (α , β und γ Iron, chemisch die 6 Methyl Derivate der Jonone); schwach gelbliche, ölige Flüssigkeiten mit starkem Veilchengeruch, die den… … Universal-Lexikon
Irone — Irones are a group of methylionone odorants used in perfumery, derived from iris oil, e.g. orris root. The most commercially important of these are:* ( ) cis γ irone, and * ( ) cis α irone Irones form through slow oxidation of triterpenoids in… … Wikipedia
irone — /uy rohn , uy rohn/, n. Chem. a colorless liquid of isomeric, unsaturated ketones, C14H22O, obtained from orris root: used in perfumery for its odor of violets. [1890 95; IR(IS) + ONE] * * * … Universalium
irone — /ˈaɪroʊn/ (say uyrohn), /aɪˈroʊn/ (say uy rohn) noun a colourless liquid, C13H20O, obtained from the orrisroot, and used in perfumery. {ir(is) + one} …
irone — ˈīˌrōn, ̷ ̷ˈ ̷ ̷ noun ( s) Etymology: International Scientific Vocabulary iris + one; originally formed as German iron : any of several oily liquid isomeric ketones C14H22O or a mixture of some of them that have a strong odor of violet and… … Useful english dictionary
alpha-irone — irone i rone, irones i rones, n. A fragrant liquid substance, a mixture of several isomers of the formula {C14H22O}, forming the essence of the violet fragrance, commonly isolated from orris oil or from the rhizomes of Iris. The main ingredient… … The Collaborative International Dictionary of English
6-methylionone — irone i rone, irones i rones, n. A fragrant liquid substance, a mixture of several isomers of the formula {C14H22O}, forming the essence of the violet fragrance, commonly isolated from orris oil or from the rhizomes of Iris. The main ingredient… … The Collaborative International Dictionary of English
