Method of controlling weeds

专利摘要:
This invention relates to the field of chemical methods for controlling weeds and unwanted vegetation. The invention makes it possible to increase the herbicidal effect by a factor of 2-3 on cereal and two long-term weedy plants, especially on cereal plants, by treating them with a derivative of N-phosphonomethylglycine of the formula () (HO) P (-0) CHi # 5CHiC (-0) N (CHj) (At a dose of 0.25-4 kg / ha. Table 1.
公开号:SU1452460A3
申请号:SU864010464
申请日:1986-01-13
公开日:1989-01-15
发明作者:Борро Ги；Лякруа Ги
申请人:Рон-Пуленк Агрошими (Фирма)；
IPC主号:

专利说明:

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The invention relates to chemical methods for controlling weeds and unwanted vegetation.
The purpose of the invention is to reverse the gerbic action of the weed control method based on the use of the N-phosphonomethyl-glycine derivative.
The description presents the method of obtaining the N-phosphonomethylglycine derivative used according to the proposed method, and biological experience data illustrating the effectiveness of the method according to the invention.
Example I, Preparation of (N-methyl-N-methylsulfonyl) amide H - (phenylphosphonomethyl) glycine (I), 50 ml 0.5 n were mixed in a 100 ml reactor. Hydrochloric acid and 2.26 g of (K-methyl-L-methylsulfonyl) amide N - - (diphenylphosphonomethyl) glycine, were heated to boiling and heated under reflux for 15 minutes. After that, the reaction mixture was rotary dry, the residue was recrystallized from acetone - propylene oxide mixture in a 50: 5 volume ratio, filtered, washed with acetone, dried and the desired product was obtained as a white powder with mp /, yield 1, 4 g (76%).
And p. 2. Meter 2. Determination of the herbicular activity of compound L in the post-emergence treatment of experimental plants.
Special 9 cm pots filled with soft soil, sowed seeds of experimental plants and
Herbicidal activity during post-harvest processing

803030
9595, 95
.1009050
10010020
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0 5 o

0
five
they were grown in greenhouse conditions up to a certain stage of development (for grass plants, before the formation of the second leaf, for two long-term plants, before the formation of the first leaf). After that, the plants were treated with an aqueous solution of the active substance containing a surfactant, and held them in greenhouse conditions for 28 days. Untreated plants served as controls.
Evaluation of herbicidal effect: 100% .- full plant death; 0% - no damage. For comparison, the known herbicide, glyphosate (L-phosphonomethylrlycine), was used. The results of the experiments are presented in the table. .
The results of the experiments indicate a significantly greater efficiency of the method according to the invention compared with the known method.

权利要求:
Claims (1)
[1]
Formula of gain
A method of controlling weeds by treating them with a derivative of N-phosphono-methylglycine, characterized in that, in order to increase the herbicidal action,; As a derivative of N-phosphonomethylglycine, a compound of the formula
; :; PCH, NHCH2C-N (CH3) SO, -CH3
oo
in the amount of 0.25-4 kg / ha.
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9895 --- Compiled by R. Streltsov Editor, A. Ogar Tehred M. Diedzh Corrector A. Obruchar
Order 7094/57
. Circulation 422
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
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FI860145A0|1986-01-13|

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NO860068L|1986-07-15|

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FR2576024A1|1986-07-18|

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ES8801508A1|1988-01-16|

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JPS61186394A|1986-08-20|

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PH21002A|1987-06-23|

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PT81830A|1986-02-01|

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OA08186A|1987-10-30|

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FR2576024B1|1988-01-08|

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PT81830B|1987-11-19|

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引用文献:

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US3316331A|1963-06-18|1967-04-25|Rohm & Haas|O-alkyl, o-phenyl or o-cresyl aminomethane phosphonic acids|

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US3910969A|1974-06-28|1975-10-07|Monsanto Co|N-phenylsulfonamido-n-phosphonomethyl glycine and certain derivatives thereof|

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DE2501185A1|1975-01-14|1976-07-15|Gaf Corp|Hydrolysis of beta--phosphonic acid diesters - using anhydrous hydrogen halide to give the mono-ester, free acid and anhydride|

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DE2608699A1|1975-03-10|1976-09-23|Ciba Geigy Ag|PHOSPHONATES, PROCESS FOR THEIR PRODUCTION AND ORGANIC MATERIALS STABILIZED THEREOF|

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ES8603901A1|1983-07-27|1986-01-01|Rhone Poulenc Agrochimie|Herbicides of the sulfon imide-type with an aminomethylphosphonic group.|

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FR2575161B1|1984-12-26|1989-03-31|Rhone Poulenc Agrochimie|PREPARATION OF PHOSPHORUS INTERMEDIATES FOR HERBICIDE USES|

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FR2576024B1|1985-01-14|1988-01-08|Rhone Poulenc Agrochimie|TYPE N HERBICIDES - SULFONYLAMINES|

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FR2579210B1|1985-03-21|1987-09-11|Rhone Poulenc Agrochimie|PREPARATION OF PHOSPHONATE GROUP HERBICIDES AND INTERMEDIATES FROM BENZOXAZINES|FR2576024B1|1985-01-14|1988-01-08|Rhone Poulenc Agrochimie|TYPE N HERBICIDES -SULFONYLAMINES|

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FR2579210B1|1985-03-21|1987-09-11|Rhone Poulenc Agrochimie|PREPARATION OF PHOSPHONATE GROUP HERBICIDES AND INTERMEDIATES FROM BENZOXAZINES|

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FR2608609B1|1986-12-18|1989-06-02|Rhone Poulenc Agrochimie|PREPARATION OF PHOSPHORUS INTERMEDIATES FOR HERBICIDE USE|

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FR2611204B1|1987-02-19|1989-05-05|Rhone Poulenc Agrochimie|INTERMEDIATE COMPOUNDS USEFUL FOR THE PREPARATION OF HERBICIDES|

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CA2018470A1|1989-07-17|1991-01-17|Scott Adams Biller|Phosphorus-containing squalene synthetase inhibitors and method|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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FR8500619A|FR2576024B1|1985-01-14|1985-01-14|TYPE N HERBICIDES -SULFONYLAMINES|

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