Abstract
AbstractAnalysis by an on‐line computerized gas‐chromatrographic (g.c.)‐mass spectral method of the steam‐volatile leaf oil of eastern white pine confirmed that α‐ and β‐pinene, and myrcene are the main monoterpenes, with lesser amounts of camphene, car‐3‐ene, β‐phellandrene, limonene, terpinolene, α‐terpineol, and bornyl acetate. In addition, germacrene‐D and caryophyllene were identified as the main sesquiterpenes; lesser amounts of humulene and δ‐cadinene were also found. Small or trace amounts of hexanal, hex‐2‐enal, tricyclene, o‐cymene, α‐phellandrene, α‐terpinene, p‐cymene, γ‐terpinene, α‐fenchol, pinocamphone, terpinen‐4‐ol, a cadinol isomer, manoyl oxide, and a kauranol isomer were identified. Germacrene‐D tended to rearrange to other sesquiterpenes on all but highly deactivated g.c. columns.
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