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  • Title: Investigation of isoprenoid benzoates and naphthoates by reversed-phase liquid chromatography. Isocratic elution characteristics of benzoates and naphthoates of C5-C20 terpenoid alcohols.
    Author: Yang TH, Zabriskie TM, Poulter CD.
    Journal: J Chromatogr; 1984 Nov 16; 312():121-22. PubMed ID: 6526864.
    Abstract:
    Conditions for derivatization of C5-C20 isoprenoid alcohols and the reversed-phase liquid chromatographic properties of the corresponding benzoate and naphthoate esters are described. A non-linear response of log k' to changes in the composition of the mobile phase was observed on a Radial-Pak C18 column. In general, the capacity factors (k') increased with increases in carbon content and degree of saturation in the hydrocarbon chain, and decreased with increases in branching and Z double bond content. Replacement of a single hydrogen in the methyl group at C-3 of geranyl benzoate with fluorine had little effect on k', while the difluoro- and trifuoromethyl derivatives showed regular increases in k'. The large extinction coefficients of the aromatic ester moieties, especially the 2-naphthoates, provide high sensitivity for UV detection.
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