| 摘要 |
Substituted 2-phenylpyridines have formula (I) wherein R1, R3=H, halogen, alkyl, haloalkyl, alkyxyalkyl, alkoxy, alkoxyalkoxy, OH, haloalkoxy, alkylcarbonyloxy, haloalkylcarbonyloxy, SH, alkylthio, alkylsulfinyl, alkylsulfonyl, haloalkylthio, haloalkylsulfinyl, haloalkylsulfonyl, CHO, CN, CO2H, alkoxycabonyl, alkoxyalkoxycarbonyl, haloalkoxycarbonyl, alkylcarbonyl, haloalkylcarbonyl, halkoxyalkylcarbonyl, CONH2, alkylaminocarbonyl, dialkylaminocarbonyl, pyrrolidinylcarbonyl, piperidylcatbonyl, morpholinycarbonyl, NO2, NH2, alkylamino, dialkylamino, pyrrolidinyl, piperidinyl, morpholinyl, alkylcarbonylamino, haloalkylcarbonylamino, alkylsulfonylamino; R2= halogen, CN, NO2, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkythio; or R1 + R2 or R2 + R3 = trimethylene or tetramethylene chain; R4 = halogen, alkyl, haloalkyl, alkoxyalkyl, alkoxy, alkoxyalkoxy, OH, haloalkoxy, alkylcarbonyloxy, haloalkylcarbonyloxy, SH, carbonyl, haloalkoxycarbonyl, alkylcarbonyl, haloalkylcarbonyl, alkoxyalkylcarbonyl, NO2, NH2, alkylamino, dialkylamino, alkoxyalkoxypiperidinyl, morpholinyl, alkylcarbonylamino, haloalkylcarbonylamino. alkylsulfonylamino; R5 = hydrogen or halogen; R6 = halogen, CN, these exist, excepting those compounds (I) where R2 is C1-C4-alkoxy and R1 and/or R3 is carboxyl or the salt, ester or amide thereof. Use: herbicides; desiccation/defoliation of plants.
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