Analysis of volatiles in limoncello liqueur and aging study with sensory was written by Da Costa, Neil C.;Anastasiou, Theodore J.. And the article was included in ACS Symposium Series in 2010.Name: rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate This article mentions the following:
Limoncello is a liqueur originating from Southern Italy, and in more recent times has also been produced in neighboring countries around the Mediterranean region. It is traditionally produced by the maceration (1) of lemon peel in grain alc., water and sugar and has a distinctive bright yellow color. It has a sweet lemony taste which is not sour, as it does not contain any lemon juice. This paper describes its homemade preparation, liquid/liquid solvent extraction and gas chromatog. (GC) anal. In addition detailed gas chromatog.-mass spectrometry (GC-MS) anal. data was obtained on a sector instrument of fresh limoncello vs. five month aged Limoncello volatiles. Previous anal. work (2, 3) has described over sixty volatile components in Limoncello; the anal. work presented here identifies over two hundred components. In addition compositional changes that occur with aging are described and related to gas-chromatog.-olfactometry (GC-O) work. These changes appear to differ from those found in lemon juices or carbonated drinks. In the experiment, the researchers used many compounds, for example, rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6Name: rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate).
rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Name: rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate
Referemce:
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Alcohols – Chemistry LibreTexts