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  • 1980-1984  (2)
  • (9Z,11E)-9  (1)
  • kenaf  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Syntheses of pure (9Z, 11Z), (9E, 11E), (9E, 11Z), and (9Z,11E)-9,11-hexadecadienals-possible candidate pheromones (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 795-807 
    Details
    ISSN: 1573-1561
    Keywords: (9z,11Z) ; (9E.11E) ; (9E,11Z) ; (9Z,11E)-9 ; 11-Hexadecadienals ; (9E)-hexadecen-11-yn-1-yl acetate ; syntheses ; aldehydes ; ester ; conjugated dienes ; dienals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The title compounds were prepared by six different routes, and recommendations are given for the more convenient procedures in laboratory-scale syntheses. Modifications in the literature preparations of the 9E,11E and 9E,11Z isomers are described. Baseline separation of a prepared mixture of all four isomers of the (9Z, 11Z), (9E, 11E), (9E, 11Z), and (9Z, 11E)-9,11-hexadecadienals was achieved using GC methods with standard capillary columns. [13C]NMR spectroscopy of the alkene carbon atoms clearly differentiates between theZ,Z, E,E and eitherE,Z orZ,E isomers of the precursor dienols and thus of the dienals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988544
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Outcrossing and isolation requirement in kenaf (Hibiscus cannabinus L.) (1981)
    Springer
    Euphytica 30 (1981), S. 739-745 
    Details
    ISSN: 1573-5060
    Keywords: Hibiscus cannabinus ; kenaf ; outcrossing ; contamination ; isolation distance ; planting design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary To find the isolation distance in Hibiscus cannabinus L. (kenaf), experiments were conducted for three years with two planting designs. The extent of cross pollination irrespective of the planting designs was inversely related with the distance. At a distance beyond 10.0 m, the contamination was found to be absent. Directions had no influence on the contamination. The amount of contamination varied considerably between the years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00038803
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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