from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoterpenoid ketone present in the essential oil of fennel
from The Century Dictionary and Cyclopedia
- n. A ketone, C10H16O, isomeric with camphor, which it resembles in general chemical properties. The dextro-form occurs in fennel-oil, the levo-form in thuja-oil.
Sorry, no etymologies found.
Most fennel seed comes from sweet fennel varieties (p. 407) and tastes sweet; seed from the less cultivated types are also bitter due to the presence of a particular terpene (fenchone).
Chemical analysis of the plant led to the isolation of L-sabinene, d-limonene, fenchone, a-terpinene and felandrene (Mukherje et al. 1964), as well as several triterpenic acids, such as ursolic acid (Misra et al. 1983), diterpenoids, such as suaveolic acid and suaveolol (Misra et al. 1981).
The starting-point for their collaboration was the Tiemann formula for drone; the results were the total synthesis of fenchone and the extension and interpretation of the Wagner rearrangement
The chief constituents of the oil are anethol, fenchone, d-pinene, and dipentene.
Chemical composition of vintage preban absinthe with special reference to thujone, fenchone, pinocamphone, methanol, copper, and antimony concentrations.