RESUMEN
The unique 1-n-propyl-perhydronaphthaline 1,2,4a,5,6,7,8,8a-octahydro-4-methyl-1-propyl-naphthalene-7-carbaldehyde, a compound which possesses an unusual sesquiterpene carbon skeleton, was isolated and identified, together with the new natural methyl ketone eicos-8,11 -dien-18-ol-2-one, from the hexane: ether extract of the aerial parts of Eryngium creticum growing in Sinai, Egypt. The structures were established by conventional methods of analysis and confirmed by DEPT, COSY, HMQC and HMBC.
Asunto(s)
Carbohidratos/química , Eryngium/química , Naftalenos/química , Sesquiterpenos/química , Carbohidratos/aislamiento & purificación , Cromatografía en Capa Delgada , Cromatografía de Gases y Espectrometría de Masas , Indicadores y Reactivos , Espectroscopía de Resonancia Magnética , Naftalenos/aislamiento & purificación , Sesquiterpenos/aislamiento & purificación , Espectrofotometría UltravioletaRESUMEN
The essential oils of fruits, stalks, leaves, and roots of PEUCEDANUM PALUSTRE (L.) Moench (Apiaceae) were analyzed by various chromatographic and spectroscopic methods. While the fruit and stalk oils consist nearly exclusively of monoterpene hydrocarbons, the essential leaf oil comprises monoterpene hydrocarbons (47%), sesquiter-pene hydrocarbons (38%), aliphatic alcohols and esters (7%), and traces of oxygenated sesquiterpenoids. 35 constituents of this oil could be identified. The detailed analysis of the complex root oil, mainly consisting of mono- and sesquiterpenoids, resulted in identification of 68 compounds, representing about 92% of the oil. The occurrence of some new sesquiterpenoids with unusual carbon skeletons is noteworthy.