Abstract
AbstractReduction of vernonia oil methyl esters (VOME) into epoxy fatty alcohol and diols was achieved with lithium aluminum hydride (LAH), under reflux and room temperature conditions, by using hexane and tetrahydrofuran (THF) as solvents. The reactions of VOME with LAH in hexane produced cis‐12,13‐epoxy‐cis‐9‐octadecenol as a major product with an isolated yield of 73.6%, whereas the reaction with LAH in THF gave isomers of 12(13)‐hydroxy‐cis‐9‐octadecenol as the major products with an isolated yield of 95.1%. LAH was similarly reacted with vernonia oil (VO) to give the same products in lower yields. 1H nuclear magnetic resonance (NMR), 13C NMR, gas chromatography‐mass spectrometry, and infrared were used to characterize these products.This study demonstrates the ability to control the reactivity of the epoxy functionality in VO or VOME with the choice of polar or nonpolar solvents, and extends the range of oleochemicals that can be derived from vernonia oil.
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