- NOVEL FUNGICIDES
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Compounds of the general formula (I), wherein the substituents are as defined in claim 1, are useful as fungicides.
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Page/Page column 107-108
(2009/04/25)
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- New insights into the photoreactivity of the organophosphorus pesticide fenthion: A σ aryl cation as a key intermediate in the photodecomposition
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The primary photodegradation processes of fenthion (FN), one of the most photosensitive pesticides used in agriculture, have been investigated by combining laser flash photolysis and steady-state measurements. The triplet state of FN is produced quite efficiently (Φisc~0.3). However, this excited state does not seem to trigger the primary photodecomposition pathways of the pesticide. It is demonstrated that FN undergoes photoheterolysis via the excited singlet state and gives the corresponding singlet σ aryl cation . Chemical evidence for the generation of this transient species is given by trapping with typical σ nucleophiles such as chloride and methanol. This photodegradation mechanism is, in part, quite different with respect to what is known to date and may account for the formation of the O,O-dimethyl S-[3-methyl-4-(methylthio)phenyl] phosphorothioate discovered as a novel photodegradation product of FN.
- Torrisi, Stefano,Sortino, Salvatore
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p. 5943 - 5949
(2007/10/03)
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- Sulfur analogues of psychotomimetic agents. 2. Analogues of (2,5-dimethoxy-4-methylphenyl)- and (2,5-dimethoxy-4-ethylphenyl)isopropylamine
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The two thio analogues of each of the well-known psychotomimetic drugs DOM [(2,5-dimethoxy-4-methylphenyl)isopropylamine] and DOET [(2,5-dimethoxy-4-ethylphenyl)isopropylamine] have been synthesized and pharmacologically evaluated in man. The 5-thio isome
- Jacob III,Shulgin
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p. 746 - 752
(2007/10/02)
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