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Synthesis of pungenin,a foliar constituent of some spruce species,and investigation of its efficacy as a feeding deterrent for spruce budworm [Choristoneura fumiferana (Clem.)] |
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| Authors: | George M. Strunz Pierre Giguère Anthony W. Thomas |
| Affiliation: | (1) Canadian Forestry Service, Maritimes Forest Research Centre, P. O. Box 4000, E3B 5P7 Fredericton, New Brunswick, Canada |
| Abstract: | Pungenin was synthesized from 3,4-dihydroxyacetophenone by a short sequence involving manipulation of protecting groups on the 3 and 4 hydroxyl functions. Bioassays indicated that the glucoside is a modest feeding deterrent for sixth-instar spruce budworm larvae, but it does not appear to retard the development of small larvae or lead to increased mortality. |
| Keywords: | Picea pungens Picea glauca feeding deterrent spruce budworm Choristoneura fumiferana (Clem.) Lepidoptera Tortricidae pungenin protection of OH groups glucoside phenolic glucoside |
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