- PROCESS FOR PREPARING BENZOIC ACID ESTERS
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There is provided a more industrially advantageous process for preparing novel pyridine derivatives expected to be used as medicines. A process for preparing 3-(6-hydroxy-1-methyl-1H-benzimidazol-2-yl)benzoic acid esters as intermediates with high quality
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Paragraph 0188; 0194
(2013/07/25)
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- PYRIDINE DERIVATIVE
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The present invention relates to a novel pyridine derivative or a pharmacologically acceptable ester thereof, or a pharmacologically acceptable salt of the derivative or ester, which has an excellent hypoglycemic effect or treats and/or prevents the onset
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Page/Page column 27
(2012/02/04)
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- Pyridyl(oxy/thio)phenoxy compounds herbicidal compositions and methods
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Certain novel pyridinyloxyphenoxy alkanoic acids, pyridinylthiophenoxy alkanoic acids, derivatives thereof and related compounds are described. More specifically, these novel compounds bear a fluorine substituent in the 3-position of the pyridinyl group and in the 5-position the substituent is selected from chlorine, CF3, CF2 Cl or CF2 H. These novel compounds exhibit surprising preemergent and postemergent activity in the control of grassy weeds.
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- Preparation of difluoropyridine compounds
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Alpha, beta-difluoropyridine compounds are prepared by contacting a 2,3-dihalopyridine compound or suitable precursor thereof with an effective amount of KF or CsF in a polar aprotic solvent (diluent) at an elevated temperature under substantially anhydrous conditions with removal of the difluoropyridine products essentially as they are formed. The starting material may optionally be added as the reaction proceeds to minimize decomposition. The reaction is also optionally conducted in the presence of an acid scavenger and/or a crown ether or other phase-transfer catalyst.
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- Certain pyridyloxy or thio-phenoxy-propanoic acids or salts thereof useful as herbicides
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Certain novel pyridinyloxyphenoxy alkanoic acids, pyridinylthiophenoxy alkanoic acids, derivatives thereof and related compounds are described. More specifically, these novel compounds bear a fluorine substituent in the 3-position of the pyridinyl group and in the 5-position the substituent is selected from chlorine, CF3, CF2 Cl or CF2 H. These novel compounds exhibit surprising preemergent and postemergent activity in the control of grassy weeds.
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- Pyridyl(oxy/thio)phenoxy compounds, herbicidal compositions and methods
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Certain novel pyridinyloxyphenoxy alkanoic acids, pyridinylthiophenoxy alkanoic acids, derivatives thereof and related compounds are described. More specifically, these novel compounds bear a fluorine substituent in the 3-position of the pyridinyl group and in the 5-position the substituent is selected from chlorine, CF3, CF2 Cl or CF2 H. These novel compounds exhibit surprising preemergent and postemergent activity in the control of grassy weeds.
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