SU656464A3 - Herbicide composition - Google Patents

Description

(54) HERBICID MEANS

one

The invention relates to herbicidal agents in combating weed and non-gestational vegetation, namely, agents containing action substances of the CG class of organic compounds and auxiliary components from the number of liquid and solid carriers, surfactants, etc.

Herbicidal agents based on aabicycloalkane derivatives are known, for example, an agent based on H-carboxyl derivatives of azabicyclo-octanes, recommended by dp to control weeds in grain crops at doses of 1 to 8 kg / ha. Structural analogs of carboxyl derivatives of azabicycloalkanes are azamonic alkanes with a carboxyl group at the nitrogen atom. These include the 5-alkylhexamethyleneimothiocarbamates {2} and 3 enhehexamethipenimothiocarbamates known as herbicides 3. However, the known herbicides of this group are not sufficiently selective for some cultivated plants, such as cotton, beans, and are also not sufficiently effective against a number of resistant weeds.

The invention of the invention is a new herbicidal agent based on derivatives of azabicyclic alkanes, possessing high herbicidal activity and selectivity of action.

This goal is achieved by using derivatives of azabicycloalkanes of the general formula D as an active substance of a germicidal agent.

n,

I

Ing-And -

SN 1

(I)

6H "-CH-K-O-YR

n

X

where C is alkyl, alt1l, benzip, phenyl or fluorophenip;

X to Y oxygen or sulfur, in an amount of from 1O to 80 wt.%. but

The compounds according to the invention enclose a wide range of herbicidal action and can be used in selectively killing weeds in crops of cauliflower, sugar beet, tomatoes, beans, rice and rice.

The forms of application of herbicidal agents are common: solutions, emulsions, powders, granules, etc. They are prepared using known methods.

The method of obtaining compounds of general formula 1 is based on the reaction of 1,3,3 trimethyl-6-azabicyclo (3, 2,1) -octane with the esters of the hapogen-formic acid, or with carbon disulfide (carbon disulfide) in the presence of a base, followed by boiling the resulting syrup, or with phosgene (thiophosgene) with the subsequent interaction of the resulting hydrochloride with alcoholoptos, phenol or ip mercaptide.

Active substance

S-Ethyl eff. 1,3,3-trimethyl-6-azabicyclo- (3,2,1) -octane-6-thiocarboxylic acid

3, 3,3-trimethyl-6-azabicyclo- (3,2,1) -octane-6-thiocarboxylic acid methyl ester

- S-propyl 1,3,3-trimethyl-6-azabicyclo- - {3,2,1) -octane-6-thiocarboxylic acid

1,3,3-Trimetip-6-azabitz S-2-propenyl ester - (3,2,1) -octane-6.-dithiocarboxylic acid

1,3,3-Trimethyl-6-azabicyclo 3, 2,1) -octane-6-thiocarboxylic acid S-Benzip ester PRI me R 2. Post-harvest application. Experimental plants, at a certain stage of development (psupoe swelling), were treated with active substances at a dose of 3 kg / ha in the form of an aqueous dispersion at the rate of 5OO l / ha of water. Herbicidal agents were evenly applied to the soil. The following examples illustrate the effectiveness of the herbicide agent according to the invention.

Example 1. Pre-emergence application.

The soil prepared for the experiment under the conditions of the greenhouse was placed in special vessels and treated with actual substances at a dose of 5 kg / ha in the form of an aqueous suspension at the rate of §00 l / ha of water. After that, the seeds of the experimental plants were sown and grown in greenhouse conditions for three weeks. The assessment of the herbicidal action was carried out according to the following scale, score:

O - no damage

 intermediate values 4 - full of plant deaths

. The results of the experiment are presented in tab. one.

Table

Herbicidal activity (in buppah) in relation to the plant

chaff bristle

4 4 4 of the herbicidal effect was carried out over three weeks after treatment. The rating scale, score: O - complete death of plants 1O - no damage The results of the experiment are presented in Table. 2

Table 2