- ARYL SULFIDE DERIVATIVES AND ARYL SULFOXIDE DERIVATIVES AS ACARICIDES AND INSECTICIDES
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The present invention relates to aryl sulphide and aryl sulphoxide derivatives, to their use as acaricides and insecticides for controlling animal pests and to processes and intermediates for their preparation. The aryl sulphide and aryl sulphoxide derivatives have the general structure (I) in which the respective radicals have the meanings given in the description.
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Paragraph 1010; 1012; 1013; 1014
(2015/12/23)
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- Synthesis of aryl perfluoroalkyl sulfides from aromatic disulfides
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Thermolysis of xenon(II) bis(perfluoroalkanecarboxylates) in the presence of diaryl disulfides occurs through the S-S bond cleavage to form dihalo-, halonitro-, and halodinitrophenyl perfluoroalkyl sulfides. The latter type of compounds was obtained for the first time. The main side process is the perfluoroalkylation of the aromatic ring.
- Sipyagin,Enshov,Kashtanov,Potemkin,Thrasher,Waterfeld
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p. 420 - 434
(2007/10/03)
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- New 4-pentafluorosulfanyl and 4-perfluoroalkylthio derivatives of 1-chloro-2-nitro- and 1-chloro-2,6-dinitrobenzenes
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New 4-pentafluorosulfanyl and 4-perfluoroalkylthio derivatives of 1-chloro-2-nitrobenzene and 1-chloro-2,6-dinitrobenzene were prepared from the corresponding bis(4-chloro-3-nitrophenyl)disulfide and bis(4-chloro-3,5-dinitrophenyl)disulfide, respectively. The SF5 derivatives were obtained by fluorination of the disulfides with AgF2 according to Sheppard's method, while perfluoroalkylation was carried out by means of thermolytic reactions with xenon(II) bis(perfluoroalkylcarboxylates). The introduction of fluorine-containing, electron-withdrawing substituents into the aromatic ring (in the presence of other deactivating groups) reinforces the activation of the halogen substituent towards nucleophilic attack. Several nucleophilic substitution reactions have been carried out with these compounds, and as a result, some N- and S-containing groups were introduced in the benzene ring. For example, the previously unknown SF5, CF3S, and C2F5S analogues of trifluralin (Treflan) were prepared and characterized. Additional synthetic possibilities for heterocyclic chemistry are presented on the basis of reactions of the new 1-chloro-2,6-dinitrobenzene derivatives with ethyl thioglycolate wherein fluorine-containing derivatives of benzothiazole N-oxide were obtained as the main products.
- Sipyagin, Alexey M.,Enshov, Vyacheslav S.,Kashtanov, Sergei A.,Bateman, Colin P.,Mullen, Brian D.,Tan, Ying-Teck,Thrasher, Joseph S.
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p. 1305 - 1316
(2007/10/03)
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