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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 4 of 4 (0.047 seconds)

Spelling suggestions: "subject:"pyrethroids"" "subject:"pyrethroid""

1

PART 1: STUDY OF PRODUCTS AND PROPERTIES OF SOLVOLYSIS OF CHRYSANTHEMUMYL TOSYLATE PART 2: REACTIONS OF SULFUR YLIDES

Feld, David, 1935- January 1968 (has links)
No description available.
Pyrethrins
Organosulfur compounds.
2

Conformation-Activity Studies of Pyrethroid Alcohols

Tu, Huai-Tsu 08 1900 (has links)
The synthesis and insecticidal activity of certain alcohols (hydroxymethyldibenzofurans, hydroxymethyldibenzothiophenes and some of their ⍺-cyano derivatives), esterified with trans-chrysanthemic acid, were investigated. The preparation of these planar alcohol moieties was undertaken to study conformation-activity effects in insecticides of the pyrethroid type. The synthesis of final ester products employed two methods. One was the direct condensation of the appropriate alcohol with chrysanthemic acid chloride in the presence of pyridine. The other involved the in situ formation of the cyanohydrin from the appropriate aldehyde and subsequent condensation with chrysanthemic acid chloride in the presence of a phase transfer reagent. Insecticidal activity is to be tested at rates of 0.001, 0.01, 0.1, 10, 100, and 1000 ppm. Fenvalerate is used as the standard against Diabrotica undecimpuntata (spotted cucumber beetles).
pyrethrins
planar alcohol moieties
Pyrethroids.
Insecticides.
3

Bioavailability of pesticides in freshwater sediments : the importance of sorption and uptake routes /

Åkerblom, Nina, January 2007 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2007. / Härtill 4 uppsatser.
4

Genotype analysis and studies of pyrethroid resistance of the oilseed rape (Brassica napus) insect pest - pollen beetle (Meligethes aeneus) /

Kazachkova, Nadiya, January 2007 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2007. / Härtill 4 uppsatser.

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