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2010 | 1-4 |
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Sex propheromone of the pine tree lappet moth Dendrolimus pini and its use in attractant-based monitoring system

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The study presents a new strategy of synthesis of the pine-tree lappet moth sex pheromone via hydrolysis of the (5Z,7E)-1,1-diethoxy-5,7-dodecadiene (propheromone) and their using in biological tests with pheromone traps. The field trials showed that a sticky delta traps with propheromone at dose of 2.4 mg was the most suitable for monitoring of the population of the pine tree lappet moth.
Opis fizyczny
  • Institute of Industrial Organic Chemistry, 6 Annopol St., 03-236 Warsaw, Poland
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  • [9] 1 1H NMR (CDCl3) δppm : 0.90(t, 3H, J= 7.2 Hz, CH3), 1.20-1.82(m, 6H, 3CH2), 2.02-2.30(m, 4H, 2CH=CHCH2), 2.46(dt, 2H, J= 1.6, 7.2 Hz, CH2CHO), 5.25(dt, 1H, J= 7.6, 10.4 Hz, CH=CH), 5.71(dt, 1H, J= 7.0, 14.8 Hz, CH=CH), 6.00(bt, 1H, J= 10.6 Hz, CH=CH), 6.25(ddq, 1H, J= 1.4, 11.0, 14.8 Hz, CH=CH), 9.78(t, 1H, J= 1.6 Hz, CHO); HRMS (EI) : [M]+∙ m/z 180.15157, calcd for C12H20O 180.15142. 2 1H NMR (CDCl3) δppm : 0.90(t, 3H, J= 7.1 Hz, CH3), 1,20(t, 6H, J=7.1 Hz, 2OCH2CH3), 1.24-1.72(m, 8H, 4CH2), 2.02-2.26(m, 4H, 2CH=CHCH2), 3.40-3.74(m, 4H, 2OCH2), 4.49(t, 1H, J= 5.6 Hz, CH2CH), 5.28(dt, 1H, J= 7.6, 10.8 Hz, CH=CH), 5.67(dt, 1H, J= 6.8, 15.2 Hz, CH=CH), 5.96(bt, 1H, J= 10.8 Hz, CH=CH), 6.28(ddq, 1H, J= 1.2, 10.8, 15.8 Hz, CH=CH); HRMS (EI) : [M]+∙ m/z 254.22546, calcd for C16H30O2 254.22458. 3 1H NMR (CDCl3) δppm : 0.89(t, 3H, J= 7.0 Hz, CH3), 1.20(t, 6H, J=7.1 Hz, 2OCH2CH3), 1.23-1.43(m, 4H, 2CH2), 1.48-1.82(m, 4H, 2CH2), 2.00-2.16(m, 2H, C≡CCH2), 2.32(td, 2H, J=1.8, 7.2 Hz, CH=CHCH2), 3.40-3.78(m, 4H, 2OCH2), 4.51(t, 1H, J= 5.5 Hz, CH2CH), 5.45(dq, 1H, J= 1.7, 15.8 Hz, CH=CH), 6.04(dt, 1H, J= 7.0, 15.8 Hz, CH=CH); HRMS (ESI) : [M + Na]+∙ m/z 275.19929, calcd for C16H28O2Na 275.19815.
  • [10] Chapdelaine M.J., Warwick P.J., Shaw A., J. Org. Chem., 1989, 54, 1218; Ward J.P., van Dorp D.A., Rec. Trav. Chim. Pays-Bas, 1969, 88, 177.
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  • [13] Hase T. et al., Tetrahedron, 1993, 49, 8007.
  • [14] Grey rubber caps (commercial penicilinum vial caps LK-7/1, purchased with German-Polish Corporation “PASS-STOMIL”) were extracted with acetone in a Soxhlet extractor prior to use.
  • [15] Amount of the (5Z,7E)-dodeca-5,7-dienal (1.2 mg per dispenser) was based on the earlier research results described by Preisner (Ref. 2 ), in which the greatest number of D. pini was caught on trees, where the sticky-traps contained dispenser (rubber cup) with 1 mg of aldehyde 1 (isomeric purity >99%). Acetal 2 was added to the dispenser in 2.4 mg i.e. 1.7 mg, counting on clean aldehyde 1, what is an insignificant excess of the attractant (~40%) in comparison with dispensers including the (5Z,7E)-dodeca-5,7-dienal.
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