title: Sesquiterpenes from lippia integrifolia essential Oil
abstract: Four sesquiterpenes (1-4) with the africanane skeleton [of which only 5-africanene (1) has been previously reported] and the new asteriscane derivative asterisca-3(15),6-diene (5) were isolated from the essential oil of Lippia integrifolia. A further new compound, african-2(6)-ene (7), was obtained as a semisynthetic product by derivatization of isoafricanol (6). The structures of the new compounds were assigned on the basis of spectroscopic data, enantioselective gas chromatography, and by chemical correlations.
authors.affiliation: Institut fur Organische Chemie, Universitat Hamburg, D-20146 Hamburg, Germany, Robertet S.A., F-06130 Grasse, France, and Facultad de Ciencias Exactas, Universidad Nacional de Cordoba, 5000 Cordoba, Argentina.
authors.initials: C
authors.lastname: Fricke
authors.initials: IH
authors.lastname: Hardt
authors.initials: WA
authors.lastname: Konig
authors.initials: D
authors.lastname: Joulain
authors.initials: JA
authors.lastname: Zygadlo
authors.initials: CA
authors.lastname: Guzman