Issue 2, 1970

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

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 C13, 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[triple bond, length as m-dash]C]3·CH[graphic omitted]CH·[graphic omitted] and CH3·CH[graphic omitted]CH·[C[triple bond, length as m-dash]C]2·CH[graphic omitted]CH·[graphic omitted] (R = H or Ac), and the C17 acetate CH3·CH[graphic omitted]CH·[C[triple bond, length as m-dash]C]2·[CH[graphic omitted]CH]2·CH(OAc)·[CH2]3·CH[double bond, length as m-dash]CH2.

Article information

Article type
Paper

J. Chem. Soc. C, 1970, 314-322

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

C. Chin, M. C. Cutler, E. R. H. Jones, J. Lee, S. Safe and V. Thaller, J. Chem. Soc. C, 1970, 314 DOI: 10.1039/J39700000314

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