SU519108A3 - Herbicide - Google Patents

Description

(54) HERBICID MEANS

one

The invention relates to chemical agents for controlling undesirable vegetation in crops of cultivated plants and crops.

; Known herbicide agent that includes the active substance - 2,3-digndre-3,3-dimethyl-3-piperidino-benzofura-3-mgsgensulfonat.

In order to enhance the herbicidal activity and selectivity of action and to expand the range of herbicides, a ref; bicidal agent, including derivatives of the Substituted 6e 13 furanilog ether, a}: a, a, is a generic substance of the general formula;

 CH,

-N

„1О OR

where hydrogen, unsubstituted or replaced

halogeno or alkoxyglylated alkyl, alkenyl or alkynyl;

 alkenyl or alkipil, a metal atom, alkylsulfonyl or acyl radical of the general formula K 4 in which K is unsubstituted or substituted by halogen, J

an alkoxy or alkylthio group; an alkali, alkenyl or alkynyl, alkylamino or dialkyl amino group is an unsubstituted or substituted FfuioreHOM alkoxy group; hydrogen, unsubstituted or substituted with 1, 1-halogen or alkoxy, alkyl, olkoyl, or alkynyl or acyl of the general formula: and SB of which is unsubstituted or substituted with halogen, alkoxy or

alkyl group, alkyl, alkenyl, alkylamino or dialkylamino or unsubstituted or substituted with halogen, alkoxy group, the content of which is active-p 4 .- and; equivalent to 0.5-9% by weight.

Example 1. The seeds of beets, cabbage, beans and weed plants such as oats, bristles, chicken millet, chaff, pepper and mustard are sown in the soil, which is then treated with the following compounds:

(I) 2,3-dihydro-3,3-dimethyl-2-ethoxy) benzofurang-5-yl-methyl-aminosulfonate (II) 2,3-dihydro-3, 3-dimethyl-2-ethoxybenzofuran-5-yl - N-methylcarbonylmethylaminosulphonate (P1) 2,3-dihydro-3,3-dimethyl-2-ethoxy-benzofuran-5-yl and chloromethylcarbonylmethyl aminosulfonate; (Iv) 2, d-dihydro-3,3-dilut1-2-ethox nbenzofur-5 and # ni-methylcarbonyl-me methyl aminosulfonate; (V) 2,3 dihydro-3,3-dimethyl-2-methoxy benofur-5-yl-GL is chloromethylcarbonylaminosulfonate; (Vi) 2,3 dihydro-3,3-dimethyl-2 metsh1carbonyloxy6enzofura-5 yl-H-methylcarbonylmethylaminosulfate; (Vii) 213 - dihydro-3,3-dimethyl-2 - ethoxybenafur -5 yl-N-methoxycarbonyl methylaminosulfonate; J (VIU) 2,3-dihydro-3,3-dimethyl-2-ethoxybenafur-5-yl-N-ethoxycarbonyl methyl sulphonate; (Ix) 2,3-dihydro-3,3 dimbt1sh-mb-ethoxybeNosofuran-5 1sh- {) -Haonpon cCBitiapeoHHn-MeTim aminosulfonate; (X) 2,3-.digi / o o-3,3 dimetvyk2 me.to "si k bonvl (zsi6eyofuur11 5g van | mat1v1-amvne sulfonate} (XI) 2,3 dihydro-3,3-dr methyl-2 -ethoxycarbonyloxybenzofura-5 yl-dmethyl-aminosulfonate; (XII) 2,3-dihydro-3, 3-dimethyl-i-h. methox carbonyloxybenzofuran-5-yl-diethylamino sulfonate, the following compounds were taken as the standard: (SEARCH 2 of ethoxy-2,3-dihydro-3, 3-dimethyl-3-benzofuranyl-methanesulfonate; (X1) 2,3-dihydro-3,3-dimethyl 2 isopropoxybenzofurav-b-yl-ethylamino-sulfonate. Dosage compounds 2 kg / ha. After 4-5 weeks, herbicidal activity is taken into account and Objectives of the studied compounds in points (Table I) :; O - no damage, 1OO- full plant death. Example 2. Cultivated and weedy test plants such as beets, cabbage, wild oats, chicken millet, m tlic, bristle height cm treated with compounds (fcN I X1U) listed in the example, at a dose of 2 kg 7 ha. After 2-3 weeks, the herbicidal activity and the selectivity of action are taken into account. 2

l and

S

with;

Vd

he

cm

with a

S

with; Yu

ct5

H

7

Formula

3 о б р е

the shadows

Herbicidal agent, including derivatives of substituted bepzofuranyl ether as an active substance, as well as an additive selected. From the group - an emulsifier solvent, a dispersant, from which, in order to increase the activity and selectivity of the herbicide, as a derivative of a substituted benzofuranyl ether it contains the compound of the general form / s RO

J - IIHZ

-SN

where K. is hydrogen, unsubstituted or substituted by halogen or alkoxygroup alkyl, alkenyl or Sh1kynyl;

519108

eight

“Galkenyl or alkynyl, metal atom, alkylsulfonyl or acyl radical

d

general formula, where K is unsubstituted or substituted by halogen, alkoxy or alkylthio groups, alkyl, alkoxy, NIL or alkynyl, alkylamino or dialkn amino group or unsubstituted or substituted by Halogen alkoxy group;

R, is hydrogen, unsubstituted or substituted by halogen or alkoxy, alkyl, alkenyl or alkynyl or acyl of the general formula

 Lype, pdg

unsubstituted

ABOUT

custom or substituted

halogen, alkoxy or alkylthio, an alkyl, alkenyl or alkynyl, alkylamino or dialkylamino group, or an unsubstituted or halogen-substituted alkoxy group, the content of the active substance being from 0.5. about 9O wt.%.