SU670196A3 - Herbicide - Google Patents

Description

: 54) HERBICIDE STRUCTURE

The method of obtaining compounds of formula 1 is based on the reaction of the corresponding phenylhydrazines with 2-carbethoxycyclohexanone, followed by the interaction of the reaction product with chlorine oxide.

or phosphorus bromide. They are obtained in other different ways.

Table 1 shows the substituents of general formula I,

Table 1. Example 1. Seeds of experimental plants are sown in special containers: and plants are grown to a certain stage of development under greenhouse conditions. Grown plants are treated with active substance preparations and continue to grow them in greenhouse conditions for 16 days. Then, a visual assessment of the treated plants is carried out in comparison with the control nerbrabr-; .them. When pre-emergence application, seeds are sown in the soil and treated with preparations of active substances. The assessment is carried out on the following scale: O - no damage; 10 - complete destruction; B is a burn; G - growth retardation; C - necrosis / chlorosis; E - slowing down of sprouting; H - fruit formation; US-axial stimulation. The results of the experiments are given in table. 2 .;

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Claims (3)

dawoH vin8n1ygeoo. 21 ... 6 P e m i e 2. Similarly, Example 1 was carried out pre-emergence and post-emergence testing under greenhouse conditions. Assessment of the herbicidal effect of the wire three weeks after treatment with active substances. As a result of the experiments, it was established that the herbicidal composition is selective for rice and wheat. At doses of 1/16 to 1/2 kg / ha, these cultured plants are undamaged, while weeds such as cinnamon, ipome, wild oats, terra, foxtail and others, have significant damages. Example 3. The experiment was carried out with rice and scoop plants. Japanese rice plants with two of three 1 leaves are planted in the soil containing brimstone seeds. Garbicidal effect is assessed after three weeks after treatment with drugs. It has been established that, at doses ranging from 1/64 to 1/2 kg / ha, the active ingredients of the rice shade have practically no damage, and the bilberry plants have a degree of damage ranging from 7 to 10 points Formula of the invention Herbicidal composition containing an active ingredient from the group of derivatives pyrazole and auxiliary components from among liquid or solid carriers, characterized in that, in order to enhance the herbicidal activity of the composition, a compound of the general formula f-f KIg) l If "- (OU where P is 3.4 or 5 ; hydrogen or methyl; Q - chlorine, bromine or iodine; X - fluorine, chlorine, bromine, iodine, cyano, methoxy or nitro; Y - hydrogen, fluorine or chlorine; Z - hydrogen or fluorine; V - hydrogen, fluorine, chlorine or methoxy, provided that a) if, hydrogen, Q is chlorine or bromine, Z and V are both hydrogen, and Y is hydrogen, or b) if either 4, and Q is iodine, R, Z and V must denote hydrogen, and Y must denote hydrogen or fluorine, c) if n-3, and methyl, Q is chlorine or bromine, Y is hydrogen or fluorine, and Z and V are both hydrogen; d) if V is not hydrogen, X is fluorine, chlorine or bromine, and Z is hydrogen, in an amount of from 0.05 to 99 wt.%. Priority signs: 5.10.75 at or 5; R-water methyl; Q - chlorine, bromine; X -, chlorine, bromine, cyano, methoxy, o; Y is hydrogen, fluorine, chlorine; Z genus, fluorine; V - hydrogen, fluorine, .. 2.12.75; Q - iodine; X 6 .08.76 when V is methoxy. The source of information accepted in the examination. U.S. Patent 5,69268, A 01 N 9/02, 03/01/1974. .Zak vku FRG, according to which the adoption of the author's witness No. 2261431, cl. 12r 8/01, 1974.