The fatty acid composition ofBiota orientalis seed oil consists of palmitic (5.1%), stearic (3.4%), oleic (15.3%), linoleic (25.6%), linolenic (34.7%), C20:3(11c,14c,17c) 4.9%, and C20:4(5c,11c,14c,17c) 10.5%. The unsaturated fatty esters derived fromBiota oil were epoxidized and subsequently treated with NaI‐PrI‐DMSO. Chromatographic separation of the complex product mixture revealed the presence of C18‐oxo, C18‐furanoid, and C18‐and C20‐oxo‐furanoid esters. Epoxidation of a pure sample of C20:4(5c,11c,14c,17c) followed by NaI‐PrI‐DMSO treatment gave a mixture of C20‐dioxo‐furanoid esters. The positions of the oxo and furanoid groups in the various derivatives were determined by GC/MS analysis.
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Jie et al. (1988) studied this question.
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