menthonen.

Brit.

/ˈmɛnθəʊn/, U.S.

/ˈmɛnˌθoʊn/

Origin: Formed within English, by derivation. Etymons: menthol n., -one suffix.

Etymology: < menth- (in menthol n.) + -one suffix, perhaps after menthene n.

Chemistry.

A cyclic ketone which is an oily liquid with an odour of peppermint, occurring in peppermint, geranium, and other essential oils; 2-isopropyl-5-methylcyclohexanone, C₁₀H₁₈O.

ΘΚΠ

the world > matter > chemistry > organic chemistry > ketones > [noun] > cyclic ketones

pinacone1866

menthone1889

fenchone1891

pyrone1891

tropinone1896

humulone1916

lupulone1919

isoflavone1925

irone1948

tropone1951

1889 H. E. Roscoe & C. Schorlemmer Treat. Chem. III. v. 470 Menthone, C₁₀H₁₈O, is formed by heating menthol with sulphuric acid and potassium bichromate.

1929 Org. Syntheses 9 53 l- Menthone can be prepared by the oxidation of rhodinol with a chromic-sulphuric acid mixture.

1969 W. Templeton Introd. Chem. Terpenoids & Steroids iii. 53 Menthone..is found in oils of peppermint, geranium and pennyroyal, mainly in its (−)-form.

1994 Jrnl. Chromatogr. A. 666 164/1 (−)-menthone is the precursor of (+)-neomenthol.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	menthone
释义	menthonen. Brit. /ˈmɛnθəʊn/, U.S. /ˈmɛnˌθoʊn/ Origin: Formed within English, by derivation. Etymons: menthol n., -one suffix. Etymology: < menth- (in menthol n.) + -one suffix, perhaps after menthene n. Chemistry. A cyclic ketone which is an oily liquid with an odour of peppermint, occurring in peppermint, geranium, and other essential oils; 2-isopropyl-5-methylcyclohexanone, C₁₀H₁₈O. ΘΚΠ the world > matter > chemistry > organic chemistry > ketones > [noun] > cyclic ketones pinacone1866 menthone1889 fenchone1891 pyrone1891 tropinone1896 humulone1916 lupulone1919 isoflavone1925 irone1948 tropone1951 1889 H. E. Roscoe & C. Schorlemmer Treat. Chem. III. v. 470 Menthone, C₁₀H₁₈O, is formed by heating menthol with sulphuric acid and potassium bichromate. 1929 Org. Syntheses 9 53 l- Menthone can be prepared by the oxidation of rhodinol with a chromic-sulphuric acid mixture. 1969 W. Templeton Introd. Chem. Terpenoids & Steroids iii. 53 Menthone..is found in oils of peppermint, geranium and pennyroyal, mainly in its (−)-form. 1994 Jrnl. Chromatogr. A. 666 164/1 (−)-menthone is the precursor of (+)-neomenthol. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1889
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