Phenols and lactones in Italo-Mitcham peppermint oil Mentha × piperita L.

✍ Scribed by Regula Näf; Alain Velluz

• Book ID: 101280597
• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 132 KB
• Volume: 13
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/(sici)1099-1026(199805/06)13:3<203::aid-ffj725>3.0.co;2-0

✦ Synopsis

In the acidic fractions of Italo-Mitcham black peppermint oil (Mentha  piperita L.), some uncommon phenols, carboxylic acids and lactones have been identi®ed, mostly related to menthone. The cis/ trans isomers of 2,6-dimethyl-heptan-5-olide (19 and 20) and the (6R)-5,6-dihydro-3,6-dimethyl-benzol[b]furan-7(4H)-one ( ) are new compounds, their structures have been proved by syntheses; the three diastereoisomers of perhydro-3,6-dimethyl-benzo[b]furan-2-one, 16, 17 and 18 as well as 2-isopropenyl-5-methylphenol (1), have not yet been identi®ed in a natural raw material.