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Issue 7, 1976
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Natural acetylenes. Part XLIX. Polyacetylenes from Dahlia scapigera(A. Dietr.) Link and Otto var. scapigera f. scapigera and some Dahlia hybrids

Colin T. Bedford,  Dipali Bhattacharjee,  Jeremy R. F. Fairbrother,  Ewart R. H. Jones, Sir,  Steve Safe  and  Viktor Thaller 

Abstract

Examination of the above Dahlia species revealed the presence of 8 polyacetylenic compounds of which the C16 ene-diyn-ene alcohol (XXXII) and its acetate were new. In representatives of the main garden varieties 36 poly-MeCH[graphic omitted]CH·[C[triple bond, length half m-dash]C]2·CH[graphic omitted]CH·CH(OH)·CH(OH)·CH[double bond, length half m-dash]CH2(XVIII), MeCH[graphic omitted]CH·[C[triple bond, length half m-dash]C]2·[CH[graphic omitted]CH]2·CH(OH)·CH2·CH2OH (XXVIII), MeCH[graphic omitted]CH·[C[triple bond, length half m-dash]C]2·[CH[graphic omitted]CH]2·[CH2]4·CH2·OH (XXXII), Me[C[triple bond, length half m-dash]C]3·[CH[double bond, length half m-dash]CH]2·CH(OH)·[CH2]3·CH[double bond, length half m-dash]CH2(XXXVI), acetylenes were detected, including the new (XVIII), (XXVIII), and (XXXVI) and their acetates. Seasonal variations of the content were noted. The C17 alcohol (XXXVI) and the C16 alcohol (XXXII) were synthesised; the latter and the corresponding C14 compound by novel routes.

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Article type: Paper
DOI: 10.1039/P19760000735
Citation: J. Chem. Soc., Perkin Trans. 1, 1976,0, 735-741
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    Natural acetylenes. Part XLIX. Polyacetylenes from Dahlia scapigera(A. Dietr.) Link and Otto var. scapigera f. scapigera and some Dahlia hybrids

    C. T. Bedford, D. Bhattacharjee, J. R. F. Fairbrother, E. R. H. Jones, S. Safe and V. Thaller, J. Chem. Soc., Perkin Trans. 1, 1976, 0, 735
    DOI: 10.1039/P19760000735

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