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Naturally occurring acetylenes
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Neue furanoeremophilane und andere sesquiterpene aus vertretern der gattung Euryops
Abstract Investigation of a further 27 Euryops species affords, besides known compounds, 55 new furanoeremophilanes together with several other compounds. The configuration of six furanoeremophilanesExpand
  • 97
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Über Pyridinium‐N‐phenol‐betaine und ihre Verwendung zur Charakterisierung der Polarität von Lösungsmitteln
Aus Pyryliumsalzen und Aminophenolen entstehen zunachst N-[Hydroxyphenyl]-pyridiniumsalze, die mit starken Basen in die tieffarbigen, kristallinen Pyridinium-N-phenol-betaine ubergehen. DieseExpand
  • 673
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New sesquiterpene lactones from Inula species
Abstract An investigation of Inula helenium, I. royleana, I. salicina and I. bifrons afforded in addition to known sesquiterpene lactones 20 new lactones, the eudesmanolides 3, 6 and 8–12 , theExpand
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Hirsutinolides from South African Vernonia species
Abstract The investigation of four South African Vernonia species afforded, in addition to known compounds, six ketohirsutinolides with different oxygen fun
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Sesquiterpene lactones and other constituents from Tanacetum parthenium
Abstract A reinvestigation of the aerial parts of Tanacetum parthenium afforded in addition to known compounds three pinene derivatives, two spiroketal enol ether polyines, four germacranolides; andExpand
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Neue pyron-derivate aus Helichrysum-arten
Abstract The investigation of five further Helichrysum species afforded in addition to known compounds nine α-pyrone derivatives all also being phloroglucinol derivatives. Furthermore, a new toxolExpand
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Twenty-one acylphloroglucinol derivatives and further constituents from south african Helichrysum species
Abstract The investigation of 27 South African Helichrysum species gave in addition to known compounds, 21 new acylphloroglucinol derivatives, five flavanoids, an unusual pyrone derivative, fiveExpand
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Seco-guaianolides and other constituents from Artemisia species
Abstract The investigation of the aerial parts of several Mongolian Artemisia species afforded two new guaianolides and two seco-guaianolides, a nerolidol and a bisabolene derivative, fourExpand
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Poskeanolide, a seco-germacranolide and other sesquiterpene lactones from Vernonia species
Abstract The aerial parts of Vernonia cinerea , collected in Costa Rica, gave four new hirsutinolides while a sample from Malawi afforded glaucolide E and two related lactones. From V. poskeana aExpand
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