- Assignment of absolute configurations of permethrin and its synthon 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid by electronic circular dichroism, optical rotation, and X-ray crystallography
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The availability of single stereoisomers of biologically/toxicologically relevant chiral compounds such as the pyrethroid-type insecticide permethrin (PM) and the reliable determination of their absolute configurations are of central importance for the de
- Bicker, Wolfgang,Kacprzak, Karol,Kwit, Marcin,Laemmerhofer, Michael,Gawronski, Jacek,Lindner, Wolfgang
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experimental part
p. 1027 - 1035
(2009/10/10)
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- Search for Routes of Synthesis of Permethrin and Chloropermethrin Starting from Halogen-containing Alkenoic Acids
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Promising procedures were developed for the synthesis of permethrin and I-chloropermethrin starting from acid chloride, nitrile, and esters of 3,3-dimethyl-2,2,4,6,6-pentachloro-5-alkenoic acid and 3,3-dimethyl-2,2,6,6-tetrachloro-5-alken-4-olide, which were prepared by adding derivatives of trichloroacetic acid to 1,1-dichloro-4-methyl-1,3-pentadiene in the presence of catalytic amounts of monovalent copper ions and amine.
- Badanyan,Stepanyan,Mikaelyan,Ovivyan,Panosyan
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- New Chiral Agents for Resolution of Racemic cis-Permethric and cis-Z-cyhalothric Acids
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Resolution of racemic pyrethroid acids (cis-permethric and cis-Z-cyhalothric) using stable optically active amines derived from natural monoterpene (+)-3-carene and preparation of optically active esters of the pyrethroid acids are described.
- Popov, Sergey A.,Tkachev, Alexey V.
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p. 1013 - 1018
(2007/10/03)
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