Structure–Odor Activity Studies on Derivatives of Aromatic and Oxygenated Monoterpenoids Synthesized by Modifying <i>p</i>-Cymene
作者:Linda Schreiner、Johannes Bauer、Eva Ortner、Andrea Buettner
DOI:10.1021/acs.jnatprod.9b00339
日期:2020.4.24
aroma. However, a systematic elucidation of the sensory properties in this class of oxygenated, aromatic monoterpenoids has not been carried out. To close this gap and gain new insights into structure-odor relationships leading to pencil-like and woody odors, 19 structurally related derivatives of p-cymene starting from thymol and carvacrol were synthesized and characterized. The compounds had odor thresholds
据报道,胸腺醌具有独特的铅笔状气味,并且是雪松状和雪松木基产品气味(例如铅笔)的冲击性化合物。化合物百里香酚和香芹酚是在植物和食品(如百里香和牛至)中常见的结构相关的增香剂,对它们的整体香气也有重要作用。但是,尚未对这类含氧芳香族单萜类化合物的感官特性进行系统的阐明。为了弥合这一差距并获得对导致铅笔状和木质气味的结构-气味关系的新见解,合成并表征了从百里香酚和香芹酚开始合成的19种对甲基苯丙氨酸的结构相关衍生物。这些化合物的气味阈值范围从2.0 ng / L空气到388.8 ng / L空气,百里香酚和香芹酚的含量最低,百里香氢醌的含量最高。这些化合物的气味大多类似于百里香,牛至和铅笔状,并具有酚类,泥土和药用气味特征,可以与结构图案成功关联。