ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Naturally Occurring Terpene Derivatives, 106. On Further α-Longipinene Derivatives from CompositesThe investigation of further Stevia species affords besides known compounds several new α-longipinene derivatives (14-16, 19-30, 33, 34, 38, and 39) as well as the bisabolene derivatives 41 and 42. From Tanacetum tanacetioides the basic compound, 1-oxo-α-longipinene (1), and the germacranolide 9 have been isolated. The structures have been elucidated by extensive spectroscopic investigations and by some chemical transformations. The isolation of 14 supports the postulated biogenesis of the longipinene derivatives. The chemotaxonomical importance of this group of sesquiterpenes is discussed.
Notes:
Die Untersuchung weiterer Stevia-Arten ergibt neben bekannten Verbindungen mehrere neue α-Longipinen-Derivate (14-16, 19-30, 33, 34, 38 und 39) sowie die Bisabolen-Derivate 41 und 42. Aus Tanacetum tanacetioides wird die Stammverbindung, das 1-Oxo-α-longipinen (1), sowie das Germacranolid 9 isoliert. Die Konstitutionen werden durch eingehende spektroskopische Untersuchungen geklärt. Die Isolierung von 14 stützt die angenommene Biogenese der Longipinen-Derivate. Die chemotaxonomische Bedeutung dieser Gruppe von Sesquiterpenen wird diskutiert.
Additional Material:
6 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19771101113
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