- 31Cl NQR SPECTRA OF COMPOUNDS IN Cl3CCH2CXRR' SERIES
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In molecules in the series Cl3CCH2CClRR', the substituents R and R' virtually do not affect the chlorine atoms of the Cl3C group, while the NQR frequency of the chlorine atom of the CClRR' group correlates satisfactorily with the ?* constants of these substituents.The regularities observed in the mutual influence of the atoms in the molecules of the studied series indicate that the previously assumed structure of some products of radical telomerization of Cl3CH with H2C=CHCl is erroneous.
- Feshin, V. P.,Dolgushin, G. V.,Voronkov, M. G.,Gaek, M.,Yanoushek, Z.
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p. 684 - 687
(2007/10/02)
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- Anthelmintic benzimidazole-carbamates
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Benzimidazole-carbamates endowed wth anthelmintic activity, and substituted in position 5(6) by a diene chain bound to the position 5(6) by an oxygen or sulphur atom optionally oxidized, are described. The processes for their preparation, the intermediates thereof, and their use as anthelmintics are described too.
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- Process to 1,1-dihalo-4-methyl-1,3-pentadienes, pyrethroid insecticide intermediates
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1,1-Dihalo-4-methyl-1,3-pentadienes, key intermediates in the synthesis of insecticidal dihalovinylcyclopropanecarboxylates, result from the condensation of 3-methyl-1-butene with a carbon tetrahalide in the presence of a catalyst, followed by the base-induced dehydrohalogenation of the 1,1,1,3-tetrahalo-4-methylpentane resulting from the condensation.
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