California Lomatiums, Part VII. Analysis of the Essential Oils of Lomatium nevadense (Watson) J. Coulter et Rose var. Parishii (J. Coulter et Rose) Jepson. Isolation of trans-Dauc-8-en-11-ol, a New Sesquiterpene Alcohol and Naturally Occurring 2′,3′,3′-Trimethyl-2′,3′-Dihydroangelicin

The essential oil from the fruits of Lomatium nevadense var. parishii showed β-phellandrene/limonene, (Z)-β-ocimene, (E)-β-ocimene, γ-terpenene, β-caryophyllene, germacrene D, bicyclogermacrene, and (E)-sesquilavandulol to constitute more than 3% each of the oil. With the addition of (E)-2-hexenal, (Z)-3-hexenol and palmitic acid, the stem and leaf oil had similar composition. A new sesquiterpene alcohol, trans-dauc-8-en-11-ol along with naturally occurring 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin were isolated. (Z)-Falcarinol made up 48.5% of the root oil.