单词 | pulegone |
释义 | pulegonen. Chemistry. A liquid terpenoid ketone with an odour of peppermint, present in pennyroyal ( Mentha pulegium) and some related plants.Systematic name: 1-methyl-4-isopropylidene-3-cyclohexanone; C10H16O. ΚΠ 1891 Jrnl. Chem. Soc. 60 936 A compound of the composition C10H16O, named by the author pulegone, can be isolated from the portion boiling at 212–216°. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xli. 614 An unsaturated ketone—pulegone, Δ-4 (8)-terpene-3-one, may be obtained from oil of pennyroyal. 1944 P. Rothemund in O. Glasser Med. Physics 175 Some natural terpenes, citronellal, linalool, pulegone and terpineol, take up more than 1 mole of oxygen per mole when exposed to light in the presence of chlorophyll. 1996 D. W. Brown Aromatherapy (Teach Yourself Ser.) iii. 21 If large amounts are applied repeatedly, then the resulting effect could be abortion or an epileptic fit (e.g. pulegone in pennyroyal and thujone in mugwort). This is a new entry (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1891 |
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