Identification of Trace Volatile Compounds in Freshly Distilled Calvados and Cognac Using Preparative Separations Coupled with Gas Chromatography-Mass Spectrometry was written by Ledauphin, Jerome;Saint-Clair, Jean-Francois;Lablanquie, Odile;Guichard, Hugues;Founier, Nicole;Guichard, Elisabeth;Barillier, Daniel. And the article was included in Journal of Agricultural and Food Chemistry in 2004.Synthetic Route of C7H14O3 The following contents are mentioned in the article:
GC-MS using both electron impact and chem. ionization detection modes led to the determination of the volatile composition of 2 samples of freshly distilled Cognac and 2 samples of freshly distilled Calvados. A total of 169 volatile compounds were directly identified in dichloromethane extracts obtained by liquid-liquid extraction Trace compounds present in both spirits were characterized with the help of preparative separations In a 1st step, groups of compounds were separated by preparative GC, and the fractions were analyzed on a polar stationary phase by GC-MS. In a 2nd step, silica gel fractionation was used to sep. them by polarity. In 331 compounds, of which 162 can be considered as trace compounds, were characterized in both freshly distilled Cognac and Calvados. Of these, 39 are common to both spirits; 30 are specific to Cognac with numerous hexenyl esters and norisoprenoidic derivatives, whereas 93 are specific to Calvados with compounds such as unsaturated alcs., phenolic derivatives, and unsaturated aldehydes. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Synthetic Route of C7H14O3).
Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C7H14O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics