PHENYL-SUBSTITUTED HETEROCYCLIC 1,3-KETOENOLS, METHOD FOR THEIR PREPARING, HERBICIDE AGENT BASED ON THEREOF AND METHOD FOR CONTROL OF WEED GROWTH Russian patent published in 2006 - IPC C07D491/04 C07D487/04 C07D207/38 A01N43/36 A01N43/56 A01N43/90 

FIELD: organic chemistry, herbicides.

SUBSTANCE: invention describes phenyl-substituted heterocyclic 1,3-ketoenols of the formula (I): wherein R₁ and R₃ mean independently of one another ethyl or (C₁-C₂)-alkoxy-group; Q means the group of the formula (Q₁): or (Q₂): wherein R₄ and R₅ in common with atoms to which they are joined form 5-7-membered cycle that can comprise additionally anellated alkylene chain consisting of 2-6 carbon atoms that, in turn, can comprise two heteroatoms taken among oxygen atom, and indicated cycle can be substituted with halogen atom, hydroxy-group, (C₁-C₆)-alkoxy-group, (C₁-C₆)-alkoxy-(C₁-C₆)-alkoxy-group, (C₁-C₄)-alkylcarbonyloxy-group, hydroxy-(C₁-C₄)-alkoxy-group, hydroxycarbonyl-(C₁-C₂)-alkoxy-group, methoxycarbonyl-(C₁-C₂)-alkoxy-group, methoxyimino-, methoxyethoxyethoxy-group; R₆ and R₇ means (C₁-C₁₀)-alkyl; R₈ means hydrogen atom; X means oxygen atom; R₂₀ means (C₁-C₁₀)-alkyl, and also agronomically acceptable salts and isomers of these compounds. Also, invention describes a method for preparing compounds of the formula (I), herbicide agent and a method for control of weed growth based on compounds of the formula (I). Invention provides preparing compounds possessing the herbicide activity.

EFFECT: improved preparing method, valuable properties of compounds and agents.

5 cl, 28 tbl, 5 ex