Method of fighting unwanted plant growth

专利摘要:
Compounds of the formula <IMAGE> I in which (R)n is hydrogen, halogen, CF3, NO2, CN, alkyl, alkoxy or alkylthio, A is O, S, NH, or N-alkyl, R1 is hydrogen or alkyl and Z is a carboxylic acid, carboxylic ester, thiol ester, carbonamide, carbohydrazide, thioamide, nitrile, hydroxymethyl, acyloxymethyl, carbamoylmethyl, or sulfonyloxymethyl group, ARE VALUABLE HERBICIDES FOR THE SELECTIVE CONTROL OF WEED GRASSES. The novel compounds are prepared by known methods, for example by reacting halo-benzthiazoles, -benzoxazoles or -benzimidazoles with unilaterally etherified hydroquinones.
公开号:SU1074387A3
申请号:SU772521799
申请日:1977-09-09
公开日:1984-02-15
发明作者:Хандте Райнхард；Херляйн Герхард；Кехер Хельмут；Лангелюддеке Петер
申请人:Хехст Аг (Фирма)；
IPC主号:

专利说明:

of 2-bromopropionic acid ester in methyl methyl ketone MP The hour is filtered off and the solvent is distilled off. To remove excess methyl bromide, the mixture is dried for 1 hour under high vacuum. Achievement of 19.4 g (90.8% of theory) 1-chloroisopropyl. ester of 2-C4- (5-chlorobenzthiazolyl-2 oxy) - $ eHOKCHj-propionic acid, | 1.5900. Table 1 presents the physical and chemical properties of the proposed compounds. . The proposed method is carried out with the following sample. Weed seeds of Lolium (LO) and Echinochloa (C) are planted in hot pots and sprinkled with powder prepared for pollination, we offer A4 to the preparation. Then the mills are placed in the greenhouse for 4 weeks, and the result of the treatment is determined by Bolle scheme. Table 2 presents the results of the Bolle test. Table 3 presents the herbicidal effect of the preparation 1 “1x compounds. The results shown in Table 3 show a high efficacy of some of the proposed compounds against Lolium (LO) and Echino-. Syoa (EU). The treatment (dusting or spraying; was carried out before or after the emergence of shoots at a dose of 2.4 kg / ha (the first figure in the table / and 0.6 kg / ha (the second figure in the table). Tables 4 and 5 show comparative experimental data on the herbicidal action of some of the pre-Lagaux and known compounds. Known compounds include A-2-benzthiazolyl-1,3-dimethylurea, B-4 (2, 4-di-chlorophenoxy) -1-. 2,4-chloro-2-methylphenoxy-propionic acid, D - methyl ester of 2 4- (2-dibromophenoxy) -froxy J-propionic acid and E - methyl ester of o (C4- (2, U-dichlorophene Oxy) -phenoxy-propionic acid. The results of Tables 4 and 5 show a higher herbicidal activity of the proposed compounds in comparison with lime 4I. Table 1
12
14
sixteen
-d-0-C} H, - JH-dHtn jf 1,5896
ABOUT
-d-o-c Ht- Js (iH 6
-d-o-dHt-cJHrdi 6
The continuation of the table.1.
6-C1
CH,
67
6-C1
CH.
68
"3
6-C1
70
CH,
6-C1
71
6-C1
72
CH,
CH,
736-C1
6-C1
74
CH,
75
6-C1
CH,
76
6-C1
CH,
Continued table. one
-С-0-СНг-с1Нг-С11
6 - (J-O-ciHrCJHz-dHt-dt
-d-o- (cJH2le- ii 6
YNZ
-d-o- (iH o dHzdi
jjHz-ei
n 1.5940
(J-o-.dH &amp;
CjHz-dL
n
-d-0-CjH2-C-ClH359
& ill
-C-o-cJHt-A-ciHa
Qir
-xJ-o-tot-dH-dHa
88
&
d-o-dHj-ci-dH
44 6
Continued table. one
SNZ-C-0-YNg- (
141 6-C1
Continued table. one
64 6
100 97.5 to X 100
95 to X97.5 90 to 95 85 to 90 7S to 85 65 to
32.5 to B5 O to .32.5
table 2
0do2,5
2.5 to 5
 5 to 10 10 to 15
15do25
25do35
35do67,5
67.5 to 100
2
1- 3 Example
Dovskhodovka processing, kg / ha.

.........
1.4-0.6-0.15
1-1-4
1-2-3
1-1-6
1-2-2
1-1-3
1-1-1
1-1-2
3-4-8
1-2-3
1-2-2
1-2-5
2-3-6
2-7-9
1-1
2-5-8
2-4-5
2-3-4
2-3-6
3-5-8
2-3-6
1-3-3
1I
 T a b l and c a 4
 - ---- ---- t Poslevskhodovaya treatment, kg / ha.
7yGv T: PG $
whether
2., 4 I 2,4-0, (
2.4-0.6-0.15
1-1-5
1-5-7
1-1-4
1-4-7
1-4-7 1-11-1
8 5
1-3-6
. Continuation of table 4
Pre-emergence treatment,
Product weight / kg / ha
AL 2.4-0.6-0.15
1-3-5 1-3-5 2-3-6 1-4-4 1-3-5 1-2-6
. 1-2-4 1-3-4 1-3-5 1-3-5 1-2-3
2-3-4
1-3-4
1-2-6
2-3-3
2-2-4
1-3-5
1-2-3
1-2-3
1-3-5
1-1-4
1-2-3
1-2-3
2-3-5
2-4-5
1-4-6
2-3-5
1-3-4
1-2-2
1-1-2
Continued tabl}. four
Post-emergence treatment, kg / ha
  T DB1G T: ёТ5
IsL, 4-0, bgO, 15 I 2.4 1 2.4-0.6 2.4
1-3-6
1-1-1
 1-1-3 1-1-5 1-1-5 1-1-4 1-1-1 1-3-6
1-1-6 1-1-5 1-1-6 1-1-4 1-2-5 2-3-4 1-3-4 1-2-3 1-1-1 1-1-5 1-1-4 1-1-6 1-1-5
1-2-4 1-3-4
1-1-4
EXAMPLE. n and e: AQR - Agropyron, DiS
Al-Alppecurus
2.5
1 2 3 2 3 6 1 1 4 2 5 8 1 2 3 1
35
0.6
0.15
2.5
06
0.6
0.15
2.5
0.6
0.15
2.5
0
0.6
0.15
2.5
0.6
0.15
2.5
Continued table. four
- Digitavia sanguin-alis
Table five
1 1 1 1 1 3 2 3 6 1 3 5 1 1 2 1
1 2 3 3 5 6
1 2 5 4 5 8 1 3 6 3 7 9 1 1 2 1
1 1 1 1 1 4 1 2 5 1 2 4 1 1 2 1
1 5 9 1 1 2 1 P remarking: AI Continuation tab. 5 LP Alopecurus, SA - Setarie, RO - Roa, Lolium, EU - Echinochloa, Cynodon.

权利要求:
Claims (1)
[1]
METHOD FOR COMBATING UNWANTED VEGETATION, including treating the soil or plants with an active substance, characterized in that, in order to enhance the herbicidal effect, a compound of the general formula where R ₂ = H, C ₅ -C _in -alkyl, in the corresponding cases substituted with 1 or 2 chlorine atoms, bromine, C ₁ -C ₄ alkoxyl, ethoxysiloxane, phenoxyl, optionally substituted chlorine or methyl; cyclohexyl, optionally substituted with chlorine or methyl; C ₅ -C ₄ alkenyl, bromopropenyl, C ₃ -C ₄ alkynyl, potassium, sodium, Rj ethyl;
R® and R _s — H, chlorophenyl; R, - propyl, phenyl, in a dose of 0.15-2.4 kg / ha.
SU ... 1074387>

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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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DE2640730A|DE2640730C2|1976-09-10|1976-09-10|Benzoxazolyloxy and benzothiazolyloxyphenoxy compounds and herbicidal agents containing them|

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