New Carbonyl Compounds in the High-Boiling Fraction of Lavender Oil. 3rd Communication

✍ Scribed by Roman Kaiser; Dietmar Lamparsky

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: German
• Weight: 882 KB
• Volume: 67
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19840670503

✦ Synopsis

Abstract

The occurrence of a series of new constituents which can be considered as Diels‐Alder adducts of methyl vinyl ketone and ocimene (→1–4), myrcene (→9, 10) or β‐far‐nesene ( →11, 12), respectively, was reported. Furthermore, the structures of four isomeric cyclohexene derivatives could be established as adducts 21–24 of (E, Z)‐ and (E, E)‐1,3,5‐undecatrience and methyl vinyl ketone. Another series of constituents having the norbornane skeleton represents adducts 25–32, and 33–40 of methyl cyclopentadiene and 1‐octen‐3‐one or methyl vinyl ketone, respectively. In accordance with Alder's endo‐rule the endo‐isomers are preponderant in the natural as well as in the synthetic mixtures. Most of these constituents could also be identified in a lavender absolute as well as in a freshly prepared hexane extract of lavender flowers (Lavandula officinalis CHAIX).