Benzylhydroxylamines and intermediates used to prepare them

Details Benzylhydroxylamines and intermediates used to prepare them Benzylhydroxylamines and intermediates used to prepare them

C - Chemistry, Metallurgy

07

D

C07D 239/54 (2006.01) A01N 43/48 (2006.01) A01N 43/54 (2006.01) A01N 43/64 (2006.01) A01N 43/72 (2006.01) A01N 47/12 (2006.01) A01N 47/24 (2006.01) A01N 47/30 (2006.01) A01N 47/34 (2006.01) A01N 53/00 (2006.01) C07C 239/08 (2006.01) C07C 239/10 (2006.01) C07C 259/06 (2006.01) C07C 265/12 (2006.01) C07C 271/20 (2006.01) C07C 271/22 (2006.01) C07C 271/28 (2006.01) C07C 271/54 (2006.01) C07C 271/58 (2006.01) C07C 275/40 (2006.01) C07C 275/64 (2006.01) C07D 239/56 (2006.01) C07D 401/00 (2006.01) C07D 403/00 (20

Patent

CA 2223111

The invention pertains to benzylhydroxylamines of formula (I), wherein X is - N(R7)-O-; Y is O, S; R1 is halogen, CN, NO2, CF3; R2 is H, halogen; R3 is H, NH2, CH3; R4 is H, halogen, C1-C6 alkyl, C1-C6 alkyl halide, C1-C6 alkyl thio, C1-C6 alkyl sulfinyl or C1-C6 alkyl sulfonyl; R5 is H, halogen, C1-C6 alkyl; R6 is H, C1-C6 alkyl, C1-C6 alkyl halide, C3-C6 cycloalkyl, C2-C6 alkenyl; R8 is H, C1-C6 alkyl, C3-C8 cycloalkyl, C1-C6 alkyl halide, C3-C6 alkenyl or C3- C6 alkinyl, where each of the last five radicals indicated can carry 1-3 substituents. The invention also pertains to the salts of (I), with R3, R7 and/or R8 being hydrogen. These compounds are useful as herbicides and for desiccation/defoliation of plants.

L'invention concerne des benzylhydroxylamines de la formule (I) dans laquelle X = -N(R?7¿)-O-; Y = O, S; R?1¿ = halogène, CN, NO¿2?, CF¿3?; R?2¿ = halogène; R?3¿ = H, NH¿2?, CH¿3?; R?4¿ = H, halogène, alkyle C¿1?-C¿6?, halogénure d'alkyle C¿1?-C¿6?, alkythio C¿1?-C¿6?, alkylsulfinyle C¿1?-C¿6? ou alkylsulfonyle C¿1?-C¿6?; R?5¿ = H, halogène, alkyle C¿1?-C¿6?; R?6¿ = H, alkyle C¿1?-C¿6?, halogénure d'alkyle C¿1?-C¿6?, cycloalkyle C¿3?-C¿6?, alcényle C¿2?-C¿6?; R?8¿ = H, alkyle C¿1?-C¿6?, cycloalkyle C¿3?-C¿8?, halogénure d'alkyle C¿1?-C¿6?, alcényle C¿3?-C¿6? ou alcinyle C¿3?-C¿6?, chacun des 5 derniers restes pouvant porter entre 1 et 3 substituants. L'invention concerne également les sels de (I) avec R?3¿, R?7¿ et/ou R?8¿ = hydrogène. Ces composés s'utilisent comme herbicides; dans la dessiccation/défoliation de végétaux.

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