diterpenen.

/dʌɪˈtəːpiːn/

Etymology: < di- comb. form 2 + terpene n.

Chemistry.

Any terpene with the formula C₂₀H₃₂; also, any of the simple derivatives of such a hydrocarbon, differing in their substituents or their degree of saturation from the diterpenes proper.

ΚΠ

1902 F. J. Pond tr. F. Heusler Chem. Terpenes 431 Very many diterpenes are known, but they have never been thoroughly characterized.

1956 Chem. & Ind. 3 Nov. 1275 (heading) The preparation of an intermediate for the synthesis of bicyclic diterpenes.

1956 I. L. Finar Org. Chem. II. viii. 324 Phytol, C₂₀H₄₀O,..in an acyclic diterpene.

Derivatives

diˈterpenoid n. a term used in place of diterpene when this is restricted to compounds of the formula C₂₀H₃₂ only; also attributive or as adj.

ΚΠ

1949 Q. Rev. (Chem. Soc.) 3 36 A full understanding of the chemistry of the diterpenoids has been developed only in the last twenty years.

1949 Q. Rev. (Chem. Soc.) 3 37 (heading) Diterpenoid resin acids.

1953 E. H. Rodd Chem. Carbon Compounds II. xii. 489 The diterpenoids (C₂₀) and triterpenoids (C₃₀)) are mostly obtained from plant or tree gums and resins which, unlike the essential oils, are not volatile in steam.

This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).

单词	diterpene
释义	diterpenen. /dʌɪˈtəːpiːn/ Etymology: < di- comb. form 2 + terpene n. Chemistry. Any terpene with the formula C₂₀H₃₂; also, any of the simple derivatives of such a hydrocarbon, differing in their substituents or their degree of saturation from the diterpenes proper. ΚΠ 1902 F. J. Pond tr. F. Heusler Chem. Terpenes 431 Very many diterpenes are known, but they have never been thoroughly characterized. 1956 Chem. & Ind. 3 Nov. 1275 (heading) The preparation of an intermediate for the synthesis of bicyclic diterpenes. 1956 I. L. Finar Org. Chem. II. viii. 324 Phytol, C₂₀H₄₀O,..in an acyclic diterpene. Derivatives diˈterpenoid n. a term used in place of diterpene when this is restricted to compounds of the formula C₂₀H₃₂ only; also attributive or as adj. ΚΠ 1949 Q. Rev. (Chem. Soc.) 3 36 A full understanding of the chemistry of the diterpenoids has been developed only in the last twenty years. 1949 Q. Rev. (Chem. Soc.) 3 37 (heading) Diterpenoid resin acids. 1953 E. H. Rodd Chem. Carbon Compounds II. xii. 489 The diterpenoids (C₂₀) and triterpenoids (C₃₀)) are mostly obtained from plant or tree gums and resins which, unlike the essential oils, are not volatile in steam. This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018). < n.1902
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