Lactone fromInula germanica

  title={Lactone fromInula germanica},
  author={P. V. Chugunov and D. Pakaln and A. M. Shreter},
  journal={Chemistry of Natural Compounds},
The substance is soluble in ethanol, ether, benzene, and chloroform, and sparingly soluble in carbon te t rachlor ide and water; it d issolves readi ly in alkalis in the cold (consuming 2 g-eq of alkali). On hydrogenation in ethanol with PtO 2 (according to Adams), a tetrahydro der ivat ive was obtained with the composit ion C20H300~, mp 166-168 ° C; the dehydrogenation of the substance over Se at 310-330 ° C for 15 min yielded chamazulene. All these facts indicate that the isolated substance… Expand
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Sesquiterpene lactones as taxonomic characters in the asteraceae
The tribal, subtribal and generic distribution of sesquiterpene lactones is examined, the compounds’ utility as taxonomic characters discussed and the biogenetically based methodology shows the efficacy of this analytical methodology. Expand