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  • Juvenoids  (1)
  • Scrobipalpuloides absoluta  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Sex pheromone of tomato pestScrobipalpuloides absoluta (Lepidoptera: Gelechiidae) (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 787-800 
    Details
    ISSN: 1573-1561
    Keywords: Lepidoptera ; Gelechiidae ; Scrobipalpuloides absoluta ; tomato ; pest ; pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The sex attractant ofScrobipalpuloides absoluta females is a 90:10 mixture of (3E,8Z,11Z)-3,8,11-tetradecatrien-1-yl acetate and (3E,8Z)-3,8-tetradecadien-1-yl acetate. Tetradecadienyl acetates bearing 8Z,11Z; 3E,8Z; and 3E,11Z double bonds were synthesized by stereospecific procedures; the mass spectral and gas chromatographic properties of the 3E,8Z isomer were found to be congruent with those of the tetradecadienyl acetate fromS. absoluta. In wind tunnel bioassays, a 10:1 mixture of synthetic (3E,8Z,11Z)-3,8,11-tetradecatrien-1-yl acetate and (3E,8Z)-3,8-tetradecadien-1-yl acetate was highly attractive toS. absoluta males. Interestingly, the presence of (8Z,11Z)-8,11-tetradecadien-1-yl acetate (10%) inhibited the response to (3E,8Z,11Z)-3,8,11-tetradecatrien-1-yl acetate completely.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02033586
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  • 2
    Electronic Resource
    Electronic Resource
    Oxime ethers as potential juvenoids: Synthesis of optical isomers (1990)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1990 (1990), S. 847-852 
    Details
    ISSN: 0170-2041
    Keywords: Juvenoids ; Oxime ethers ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Two racemic juvenoids 5 and 6 and their optical isomers 10, 11, 17 and 18 having chiral centres in the aliphatic side chain were synthetized. The second chiral centre in the molecules remained racemic in all derivatives prepared. The absolute configurations of the optically active centres of the enantiomers were determined on the basis of the 1H-NMR spectral evaluation of the diastereoisomeric MTPA esters 12, 13, 19 and 20 derived from the intermediate alcohols 8 and 15. The optical purity was established by an HPLC analysis of the corresponding MTPA esters. The 1H-NMR spectra of all compounds as well as the CD spectra of all chiral isomers were measured and discussed.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.1990199001159
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