- Comparison of Phenylacetates with Benzoates and Phenylpropanoates as Antifeedants for the Pine Weevil, Hylobius abietis
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This study concludes an extensive investigation of antifeedants for the pine weevil, Hylobius abietis (Coleoptera: Curculionidae), an economically important pest of planted conifer seedlings. Building on the previously reported antifeedant effects of benzoates and phenylpropanoids (aromatic compounds with one- or three-carbon-atom substituents on the benzene ring), we here report the antifeedant effects of compounds with two-carbon-atom side chains (i.e., phenylacetates). We also present new results; the best antifeedants from the benzoate class were tested at 10-fold lower concentrations in order to find the optimal antifeedants. Generally, for all three compound classes, efficient antifeedants were found to have one or two methyl, chloro, or methoxy substituents on the aromatic ring. For monosubstituted phenylpropanoids, the substituent preferably should be in the para-position. In the search for synergistic antifeedant effects among the three compound classes, combinations of compounds from the three classes were tested in binary and ternary mixtures.
- Unelius, C. Rikard,Bohman, Bj?rn,Nordlander, G?ran
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p. 11797 - 11805
(2018/11/21)
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- A MANUFACTURING PROCESS OF ISOFLAVAN OR ISOFLAVENE DERIVATIVES
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The present invention relates to a method of synthesizing isoflavan and isoflavene derivatives of the Formula 1, which have the biological efficacy of antioxidation and protection against ultraviolet light. The method is effective and suitable for a mass production of isoflavan and isoflavene derivatives, which is a more convenient alternative preparation method compared to the isolation method by the extraction of plants, such as licorice, via troublesome preparative processes.
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Page/Page column 19
(2010/02/11)
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- Compounds that modulate PPAR activity and methods of preparation
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This invention discloses compounds that alter PPAR activity. The invention also discloses pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable compositions comprising the compounds or their salts, and methods of using them as therapeutic agents for treating or preventing hyperlipidemia and hypercholesteremia in a mammal. The present invention also discloses methods for making the disclosed compounds.
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- PHASEOLOIDIN, A HOMOGENTISIC ACID GLUCOSIDE FROM ENTADA PHASEOLOIDES
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The structure of phaseoloidine isolated from the seeds of Entada phaseolides has been determined as homogentisic acid 2-O-β-D-glucopyranoside by chemical and spectral means.
- Barua,, Arun K.,Chakrabarty, Manas,Datta, Pran K.,Ray, Sarmila
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p. 3259 - 3262
(2007/10/02)
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