The steroidal pig pheromone androstenone (5α-androst-16-en-3-one) as well as the indole derivate skatole are known to be the major compounds contributing to boar taint. The preparation of 2H-labeled internal standards of androstenone and skatole for stable isotope dilution assay–gas chromatography–mass spectrometry analysis of pig back fat samples is presented. The synthesis of d3-androstenone is highlighted by a palladium catalyzed deuteration of a Δ5,6-double bond of a hydrophobic steroid in a polar, D2O-containing solvent mixture. Moreover, the utilization of D2O as a deuterium source with in situ formation of D2 by means of Mg0 was found to be a very feasible and convenient alternative with respect to costs and technical effort.
众所周知,类
固醇猪信息素
雄烯酮(5α-雄甾-16-烯-3-酮)和
吲哚衍
生物司卡托乐是导致公猪腥臭的主要化合物。本文介绍了如何制备 2H 标记的
雄烯酮和司卡托内标物,用于猪背脂肪样品的稳定同位素稀释测定-气相色谱-质谱分析。d3 -
雄烯酮的合成主要是在极性、含 D2O 的混合溶剂中,通过
钯催化疏
水类
固醇的 Δ5,6-双键进行
氘化。此外,利用 D2O 作为
氘源并通过 Mg0 在原位形成 D2,在成本和技术方面都是一种非常可行和方便的替代方法。