Substituted 2-phenylpyridines

Details Substituted 2-phenylpyridines Substituted 2-phenylpyridines

C - Chemistry, Metallurgy

07

D

C07D 213/61 (2006.01) A01N 43/40 (2006.01) C07D 213/55 (2006.01) C07D 213/56 (2006.01) C07D 213/89 (2006.01)

Patent

CA 2230172

The invention concerns 2-phenylpyridines (I) and their salts, in which, n = 0, 1; R1 = halogen, C1-C4 alkylhalide; R2, R3 = H, halogen; R4 = CN, halogen; R5 = -CO-O-( C1-C4 alkylene)-CO-OR6, -CO-O-(C1-C4 alkylene)-CO-N(R7)R8, -O-(C1-C4 alkylene)-CO-O-(C1-C4 alkylene)-CO-OR6, -O-(C1-C4 alkylene)-CO-O-(C1-C4 alkylene)-CO-N(R7)R8, -S-(C1-C4 alkylen)-CO-O-(C1-C4 alkylene)-CO-OR6 or -S- (C1-C4 alkylene)-CO-O-(C1-C4 alkylene)-CO-N(R7)R8; R6 = H, C1-C4 alkyl,(C1-C4 alkoxy)(C1-C4 alkyl), C2-C4 alkenyle, C3-C4 alkinyl; R7 = H, C1-C4 alkyl, carboxyl(C1-C4 alkyl), (C1-C4 alcoxycarbonyl)(C1-C4 alkyl); R8 = H or C1-C4 alkyl. Such compounds are suitable for use as herbicides and as plant desiccants/defoliants.

L'invention concerne des 2-phénylpyridines substituées de la formule (I) et leurs sels, où n = 0, 1; R?1¿ = halogène, halogénure d'alkyle C¿1?-C¿4?; R?2¿, R?3¿ = H, halogène; R?4¿ = CN, halogène; R?5¿ = -CO-O-(alkylène C¿1?-C¿4?)-CO-OR?6¿, -CO-O-(alkylène C¿1?-C¿4?)-CO-N(R?7¿)R?8¿, -O-(alkylène C¿1?-C¿4?)-CO-O-(alkylène C¿1?-C¿4?)-CO-OR?6¿, -O-(alkylène C¿1?-C¿4?)-CO-O-(alkylène C¿1?-C¿4?)-CO-OR?6¿ ou -S-(alkylène C¿1?-C¿4?)-CO-O-(alkylène C¿1?-C¿4?)-CO-N(R?7¿)R?8¿; R?6¿ = H, alkyle C¿1?-C¿4?, alcoxy C¿1?-C¿4?-alkyle C¿1?-C¿4?, alkényle C¿2?-C¿4?, alkinyle C¿3?-C¿4?; R?7¿ = H, alkyle C¿1?-C¿4?, carboxyle-alkyle C¿1?-C¿4?, alcoxycarbonyle C¿1?-C¿4?-alkyle C¿1?-C¿4?; R?8¿ = H ou alkyle C¿1?-C¿4?. Ces composés s'utilisent comme herbicides, pour la dessiccation/défoliation de végétaux.

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