Natural acetylenes. Part XXXI. C14-tetrahydropyranyl and other polyacetylenes from the compositae Dahlia coccinea cav. var. coccinea

C. Chin, M. C. Cutler, Ewart R.H. Jones, J. Lee, S. Safe, V. Thaller

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

The polyacetylene contents of one form of the species Dahlia coccinea Cav. var. coccinea and also of a horticultural form derived from the same species have been examined. The nineteen polyacetylenes detected comprised eight C 13, eight C14, and three C17 compounds. Five of them were previously unknown; their isolation, characterisation, and structure determination are described. They are the C14 2,3-disbustituted tetrahydroprans CH3·[C≡C]3·CH= tCH·CH·CH(OR)·[CH2] 2·CH2·O and CH3·CH= tCH·[C≡C]2·CH=tCH· CH·CH(OR)·[CH2]3·O (R = H or Ac), and the C17 acetate CH3·CH= tCH·[C≡C]2·[CH=ttCH] 2·CH(OAc)·[CH2]3·CH= CH2.

Original languageEnglish (US)
Pages (from-to)314-322
Number of pages9
JournalJournal of the Chemical Society C: Organic Chemistry
Issue number2
DOIs
StatePublished - 1970

ASJC Scopus subject areas

  • Organic Chemistry

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