Farnesol jasmine

Nerolidol and Farnesol. The alcohols nerohdol [7212-44-4] (96) and famesol [4602-84-0] (97) are isomeric and are both important perfumery products. Nerohdol has been isolated from neroH oil, jasmine, citroneUa oil, and pepper oil. It has a mild and woody-floral, slightly green odor with excellent tenacity and good blending and fixative properties (190). 

All four isomers of farnesol (111) are found in nature and all have odors in the muguet and linden direction. The commonest is the ( , )-isomer that occurs in, among others, cabreuva and ambrette seed, while the (Z, )-isomer has been found in jasmine and ylangylang, the ( , -isomer in cabreuva, rose, and neroli, and the (Z,Z)-isomer in rose. Nerolidol (113) is the allylic isomer of farnesol and exists in four isomeric forms two enantiomers each of two geometric isomers. 

The isomer has been found in cabreuva, niaouli, and neroli oils among others and the (Z)-isomer in neroli, jasmine, ho leaf, and so on. Figure 6.24 shows the structures of farnesol and nerolidol with all of the double bonds in the trans-con guration. 

The volatile oil (bitter orange oil) contains more than 90% monoterpenes (main f-limonene, also myrcene, campherr pinene, ocimene, p-cymene, etc.) small amounts of alcohols (linalool, terpinene nerol, farnesol, nerolidol, octanol, etc. usually 0.5-1% aldehydes (mainly decanal also nonanal, dodecanal, citronellal, neral acetaldehyde, formaldehyde, etc.), and ketones (carvone, a-ionone, and jasmine) free acids (octadeca-dienoic, pelargonic, cinnamic, acetic, etc.) about 2.4% esters (linalyl acetate, decyl pe-largonate, octyl acetate, geranyl acetate, etc.) coumarins (osthole and auraptenol) and others (jiangsu list and horhammer). 

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