Etudes sur les matières végétales volatiles CXCVIII. Contribution à la connaissance des farnésènes

The dehydration of farnesols or nerolidols is similar to that of geraniol and nerol or linalool. It yields a mixture of hydrocarbons including trans‐β‐farnesene, two allofarnesenes, α‐curcumene, α‐, β‐ and γ‐bisabolenes, and triterpenes. The triterpenes result from dienisation of β‐farnesenes or α‐farnesenes with β‐farnesenes, or dimerization of allofarnesenes.