- Herbicidal pyridine compounds
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Herbicidal 3- and/or 5-halogenomethyl-pyrid-2-yloxyphenoxy compounds and processes for making and using the same. Intermediates for making these compounds and their preparation are also disclosed. Thus, for example, 2-chloro-5-trichloromethylpyridine is prepared by a liquid phase chlorination of 3-methylpyridine under the influence of ultra violet light.
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- Herbicidal compounds
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A herbicidal sulphonamide compound of the formula (I): STR1 and salts thereof, wherein R1 is a pyridyl group of the formula: STR2 wherein the group X of the pyridyl group represents a fluorine, chlorine, bromine, or iodine atom, or an alkyl radical of 1 to 4 carbon atoms optionally substituted by one or more fluorine or chlorine atoms, and the group Y represents hydrogen, fluorine chlorine, bromine, or iodine or an alkyl radical of 1 to 4 carbon atoms optionally substituted by one or more fluorine or chlorine atoms; R2 represents an alkyl radical of 1 to 6 carbon atoms optionally substituted by one or more fluorine atoms; and R3 is hydrogen or an alkyl radical of 1 to 4 carbon atoms.
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- Herbicidal mono- or di-substituted-2-pyridinyloxy-phenoxy-lower-alkane-carbamates
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Herbicidal pyridine compounds of the formula (I): STR1 wherein Z may be halogen, or a fluorine- or chlorine-substituted alkyl group of 1 to 4 carbon atoms, and Y may be hydrogen, halogen, or a fluorine- or chlorine-substituted alkyl group of 1 to 4 carbon atoms; X may be an OH group or an acyloxy group; a halogen atom; an amino group, a mono- or di-alkyl amino group, or an alkanoylamido group; an alkoxy group optionally substituted by hydroxy or alkoxy; or a mercapto group, an alkylthio group, or a phenylthio group. The invention also provides herbicidal compositions containing the compounds, and processes for making the compounds.
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