Author
Ferdinand Bohlinann
Bio: Ferdinand Bohlinann is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Heliantheae & Helianthella uniflora. The author has an hindex of 1, co-authored 1 publications receiving 99 citations.
Topics: Heliantheae, Helianthella uniflora
Papers
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TL;DR: In this paper, the authors discuss the biogenetical relationships between the tetrahedron of Helianthella uniflora and the acetophenone derivatives of the genus.
Abstract: Die zum Tribus Heliantheae gehorende Helianthella uniflora enthalt neben Spuren des weitverbreiteten Pentain-ens1 zahlreiche Acetophenon-Derivate(2–12), die alle einen Isopentenyl-Rest als Seitenkette oder als Teil von Ringsystemen besitzen. Die Strukturen ergeben sich aus den spektralen Daten. Ihre biogenetischen Beziehungen werden diskutiert.
New Isopentenyl-acetophenone Derivatives from Helianthella uniflora
Helianthella uniflora belonging to the tribe Heliantheae contains besides traces of the widespread pentayne-ene 1 several acetophenone derivatives all bearing an isopentenyl residue as sidechain or as part of ring systems. The structures are elucidated by their spectral data and the biogenetical relationships are discussed.
101 citations
Cited by
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TL;DR: Structures and configurations of some of the investigated species contain besides the widely distributed pentaynene 33 several known thymol derivatives together with a new one.
194 citations
TL;DR: In this paper, the authors bestatigt sich die schon eingangs erwahnte Festellung, das in Eine klare Differenzierung der Gattung Senecio von den Nachbargruppen von der Seite der Inhaltsstoffe her, ist nach wie vor problematisch.
166 citations
TL;DR: Chromenes (benzopyrans) and benzofurans are characteristic natural products of certain tribes of the Asteraceae and a review of recent findings can be found in this article.
158 citations
TL;DR: Results confirm that the co-occurrence of acidic phenolic hydroxyls and lipophilic residues is an important chemical feature for the expression of antifungal activity.
123 citations
TL;DR: In this article, the results of an investigation of six Mexican species of the old genus Eupatorium which are now placed in the genera Ageratina, Critonia and Fleischmannia, yields two new sesquiterpenic acids (12 and 16), a cadinane derivative (40) and three sesiquiterpene lactones (41, 57 and 58).
Abstract: Die Untersuchung von sechs mexikanischen Arten der alten Gattung Eupatorium, die jetzt in die Gattungen Ageratina, Critonia und Fleischmannia eingeordnet werden, ergibt zwei neue Sesquiterpensauren (12 und 16), ein Cadinan-Derivat (40) und drei Sesquiterpenlactone (41, 57 und 58). Auserdem werden neben bereits bekannten Verbindungen elf neue Thymolderivate (3–10 und 46–48), vier p-Hydroxyacetophenon-Derivate (21, 26, 30 und 45), drei Benzoesaurebenzylester (35–37), ein Flavanon (54) und ein Lignan (60) isoliert. Die Konstitutionen werden durch spektroskopische Daten sowie durch einige chemische Reaktionen geklart. Die chemotaxonomischen Aspekte werden diskutiert.
Naturally Occurring Terpene Derivatives, 76. On Constituents of the Eupatorium Group
The investigation of six Mexican species of the old genus Eupatorium which are now placed in the genera Ageratina, Critonia and Fleischmannia, yields two new sesquiterpenic acids (12 and 16), a cadinane derivative (40) and three sesquiterpene lactones (41, 57 and 58). In addition besides already known compounds eleven new thymol derivatives (3–10 and 46–48), four p-hydroxy-acetophenone derivatives (21, 26, 30 and 45), three benzyl benzoates (35–37), a flavanone (54) and a lignan (60) are isolated. The structures are established by spectroscopic data as well as by some chemical reactions. The chemotaxonomical aspects are discussed.
114 citations