Synthesis of (±)-methyl tetradeca-trans-2,4,5-trienoate, the allenic sex pheremone produced by the male dried bean beetle

Authors:
  • PLPhyllis D. Landor
    Phyllis D. Landor
  • SLS. R. Landor
    S. R. Landor
  • SMS. Mukasa
    S. Mukasa
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Abstract
Dodeca-2,3-dien-1-ol was synthesised by the reductive elimination of the tetrahydropyran-2′-yloxy group from 4-tetrahydropyran-2′-yloxydodec-2-yn-1-ol, and oxidised with active manganese dioxide to the corresponding allenic aldehyde which, on treatment with the anion of trimethyl phosphonoacetate, gave (±)-methyl tetradeca-trans-2,4,5-trienoate.