Phytochemistry p. 1907 - 1914 (1981)
Update date:2022-08-11
Topics:
Bohlmann, Ferdinand
Kramp, Wolfgang
Grenz, Michael
Robinson, Harold
King, Robert M.
The investigation of ten Baccharis species afforded in addition to known compounds eight new diterpenes, four ent-labdanes, three kaurenes and a clerodane derivative.Furthermore, two new p-hydroxyacetophenones, a flavone, 3'-methoxyxanthomicrol and two matricaria ester derivatives were isolated.The structures were elucidated by spectroscopic methods and a few chemical transformations.The chemotaxonomic situation of the large genus is discussed briefly. - Keywords: Baccharis species; Compositae; diterpenes; ent-labdanes; clerodane; ent-kauranes; p-hydroxyacetophenone derivatives; acetylenes; flavone; 3'-methoxyxanthomicrol.
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