ChemInform Abstract: Synthesis of (8E,10Z)-Tetradeca-8,10-dienal, Sex Pheromone of Horse Chestnut Leafminer (Cameraria ohridella), and All Its Geometrical Isomers.

ChemInform ◽  
2000 ◽  
Vol 31 (38) ◽  
pp. no-no
Author(s):  
Michal Hoskovec ◽  
David Saman ◽  
Ales Svatos
2000 ◽  
Vol 65 (4) ◽  
pp. 511-523 ◽  
Author(s):  
Michal Hoskovec ◽  
David Šaman ◽  
Aleš Svatoš

(8E,10Z)-Tetradeca-8,10-dienal (1a), sex pheromone of the horse chestnut leafminer (Cameraria ohridella; Lepidoptera, Gracillariidae), and its geometrical isomers (1b-1d) were efficiently synthesized using tetrakis(triphenylphosphine)palladium catalyzed cross-coupling reactions of alk-1-ynes or alkenyl alanes with corresponding vinyl iodides. The stereoisomeric purity of obtained tetradecadienals 1a-1d was higher than 95% (GC). Relative electroantennographic (EAG) activities of the prepared compounds 1a-1d elicited on male antennae supported the previously published identification of the C. ohridella sex pheromone.


1986 ◽  
Vol 21 (4) ◽  
pp. 578-581 ◽  
Author(s):  
Hajime SUGIE ◽  
Yoshio TAMAKI ◽  
Kenjiro KAWASAKI ◽  
Masayosi WAKOU ◽  
Tosio OKU ◽  
...  

1988 ◽  
Vol 52 (10) ◽  
pp. 2459-2468 ◽  
Author(s):  
Tetsu ANDO ◽  
Yasushi OGURA ◽  
Motoaki KOYAMA ◽  
Michiko KURANE ◽  
Masaaki UCHIYAMA ◽  
...  

2006 ◽  
Vol 138 (2) ◽  
pp. 263-268 ◽  
Author(s):  
Gábor Szöcs ◽  
Imre S. Otvos ◽  
Andrea J. Schiller ◽  
Jan Bergmann ◽  
Wittko Francke

AbstractField trapping trials showed that Cameraria gaultheriella Walsingham and C. lobatiella Opler and Davis (Lepidoptera: Gracillariidae) were attracted in significant numbers in British Columbia, Canada, to sticky traps baited with 10 µg of (E,Z)-8,10-tetradecadienal (E8Z10-14Ald), the sex pheromone of the European horse chestnut leafminer, C. ohridella Deschka and Dimic. There was perfect specificity in captures at habitats located only about 8 km apart from each other: C. gaultheriella was captured exclusively at a humid habitat covered by the shrub salal, Gaultheria shallon Pursh (Ericaceae), whereas C. lobatiella was trapped at an arid location with Garry oak trees, Quercus garryana Dougl. (Fagaceae). Seasonal flight patterns of these two Canadian Cameraria species, as monitored by pheromone traps, indicated differences in their respective flight periods. The possibility of additional cryptic components in the respective pheromones of these three Cameraria species attracted to E8Z10-14Ald is discussed.


2003 ◽  
Vol 127 (3) ◽  
pp. 121-126 ◽  
Author(s):  
G. Raspotnig ◽  
R. Schicho ◽  
E. Stabentheiner ◽  
C. Magnes ◽  
M. Stelzl

1990 ◽  
Vol 25 (1) ◽  
pp. 64-72 ◽  
Author(s):  
J. A. Klun ◽  
M. Schwarz ◽  
B. A. Leonhardt ◽  
W. W. Cantelo

Analysis of ovipositor extracts of the squash vine borer Melittia cucurbitae showed that a major component in the extracts was (E,Z)-2,13-octadecadien-l-ol acetate along with traces of (Z,Z)-and (Z,E)-isomers. The extracts probably also contained (E,Z)-2,13-octadecadien-l-ol, geometrical isomers of 3,13-octadecadien-l-ol acetate, (Z)-9-hexadecen-l-ol, (Z)-9-hexadecen-l-ol acetate, (Z)-11-hexadecen-l-ol acetate, hexadecan-l-ol acetate, (Z)-13-octadecen-l-ol acetate, and (Z)-13-octadecen-l-ol. Trapping tests with permutations of these compounds showed that a binary mixture of (E,Z)-2,13-octadecadien-l-ol acetate and (Z,Z)-3,13-octadecadien-l-ol acetate (99.7:0.3) was required to effectively cause capture of males. The binary mixture proved to be more effective as a lure for squash vine borer males than (E,Z)-2,13-octadecadien-l-ol acetate alone. Thus, behavioral evidence indicated that a 2,13- plus 3,13-isomeric combination of octadecadien-l-ol acetates quite likely is a natural element in the female sex pheromone of this moth. Physical chemical evidence for the 3,13 isomer in the female extracts was equivocal because its purported occurrence was at a trace level and absolute verification of the compound's structure was not possible.


1999 ◽  
Vol 35 (No. 1) ◽  
pp. 10-13 ◽  
Author(s):  
A. Svatoš ◽  
B. Kalinová ◽  
M. Hoskovec ◽  
J. Kindl ◽  
i. Hrdý

Females of the horse-chestnut leafminer Cameraria ohridella Deschka & Dimić (Lepidoptera: Gracillariidae) produce a highly attractive sex pheromone in the early photophase. The pheromone, luring conspecific males into Delta traps baited with females, is produced in the female abdominal tip (ca 10–50 pg per calling female) and the active components can be extracted with hexane. Both dissected tips and their hexane extracts show high attractiveness for C. ohridella males in a wind tunnel behavioural bioassay. According to electrophysiologic recordings the male antennae are notably sensitive to both dissected female abdomens and extracts from them. The strong attractiveness of the pheromone may be useful in control of this pest. 


2002 ◽  
Vol 57 (7-8) ◽  
pp. 739-752 ◽  
Author(s):  
Wittko Francke ◽  
Stephan Franke ◽  
Jan Bergmann ◽  
Till Tolasch ◽  
Mitko Subchev ◽  
...  

Mass spectrometric investigations confirmed the structure of the female produced sex pheromone of the horse-chestnut leafminer Cameraria ohridella Desch. and Dim. to be (8E,10Z)-8,10-tetradecadienal. Pure samples, prepared in a straightforward synthesis, were highly attractive in field tests and proved to be suitable for monitoring of flight activities and population dynamics. In mixtures with the synthetic pheromone, analogues like 9-tridecynal and 7-dodecynyl formate were shown to reduce trap catches. In electroantennographic experiments, pheromone analogues were less active than the pheromone. 9-Tridecynal was the most EAG active analogue tested, followed by 7-dodecyn-1-yl formate and 7-undecyn-1- yl formate.


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