title: Artifacts produced during acid-catalyzed methanolysis of sterol esters.
abstract: Sterol esters were transesterified within 1 hr using either acid or base catalysts. Acid-catalyzed methanolysis of sterol esters with HCl, H2SO4, or BF3 leads to the formation of two artifacts derived from the sterol portion of the molecule; they were identified as dehydrated and methoxylated derivatives of sterols. These two artifacts were not produced using a base-catalyzed methanolysis with NaOCH3.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002855:Chromatography, Thin Layer; D004952:Esters; D005069:Evaluation Studies as Topic; D008401:Gas Chromatography-Mass Spectrometry; D000432:Methanol; D013261:Sterols
chemical_list: D004952:Esters; D013261:Sterols; D000432:Methanol