New 4-pyridylcarbonyl-cyclohexene-dione derivatives, useful as both total and selective herbicides and effective against mono- and di-cotyledonous weeds, for use on e.g. cereals, cotton, soya, sugar beet/cane and rape

摘要

5-Amino-4-(pyridinylcarbonyl)-cyclohexene-1,3-dione derivatives (I) and their salts, all isomers and tautomers are new. 5-Amino-4-(pyridinylcarbonyl)-cyclohexene-1,3-dione derivatives of formula (I) and their salts, all isomers and tautomers are new. R1 = H, 1-12C alkyl, 2-12C alkenyl or alkynyl, 3-12C allenyl, 3-12C cycloalkyl, R3-(1-12C alkylene or 2-12C alkenylene) where alkylene and alkenylene may be interrupted by oxygen, S(O)n, NR21 or CO and substituted by R4, or phenyl (optionally substituted 1-5 times by R5), 3-12 membered, mono- or bi-cyclic ring system, aromatic, partly or fully saturated, optionally containing 1-5 heteroatoms (nitrogen, oxygen and/or sulfur) or 1-2 carbonyl, and optionally substituted by 1-3 R6, with the system attached through a C or N atom, directly or via a 1-6C alkylene or alkenylene chain, itself optionally interrupted by oxygen or S(O)n and/or substituted by R7, to which NR1R2 is attached, and substituents on N are other than halo, or cyano, C(X1)X2R8, C(X3)NR9R10, 1-12C alkoxy or alkylthio; R2 = H, cyano, 1-12C (halo)alkyl, 2-12C (halo)alkenyl or (halo)alkynyl, 3-12C allenyl, 3-12C cycloalkyl, R11-(1-12C alkylene or 2-12C alkenylene) where alkylene and alkenylene may be interrupted by oxygen, or S(O)n and substituted by R12, or R2 and R1 are together 2-12C alkylene or alkenylene (optionally interrupted by 1-3 O, S(O)n, NR13 or CX4) and optionally substituted by 1-4 R14, or NR1R2 is pyrrolyl, pyrazolyl, imidazolyl, triazolyl or tetrazolyl, all but the last optionally substituted by 1-3 R15; n = 0-2; X1 = O or S; X2 = bond, O or S; X3 = O, S or NR21; X4 = O, S, OCH2CH2O or OCH2CH2CH2O; and Q = N or N+-O-. The full definitions are given in the DEFINITIONS (Full Definitions) Field. An Independent claim is also included for a method for making (I) by reacting the corresponding 5-halo compound (II) with HNR1R2, or its alkali or alkaline earth metal salt.