DE1089210B - Herbicides - Google Patents
HerbicidesInfo
- Publication number
- DE1089210B DE1089210B DEF28640A DEF0028640A DE1089210B DE 1089210 B DE1089210 B DE 1089210B DE F28640 A DEF28640 A DE F28640A DE F0028640 A DEF0028640 A DE F0028640A DE 1089210 B DE1089210 B DE 1089210B
- Authority
- DE
- Germany
- Prior art keywords
- mustard
- substituted
- tetramethyl
- oats
- guanidines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/44—Nitrogen atoms not forming part of a nitro radical
- C07D233/50—Nitrogen atoms not forming part of a nitro radical with carbocyclic radicals directly attached to said nitrogen atoms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
- A01N47/44—Guanidine; Derivatives thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Dentistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plant Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Unkrautbekämpfungsmittel Es wurde gefunden, daß substituierte Guanidine der allgemeinen Formel in der Ar einen gegebenenfalls kemsubstitiiierten aromatischen Rest bedeutet und R, und R, für gleiche oder verschiedene primäre und sekundäre Aminreste stehen, eine ausgezeichnete herbieide Wirksamkeit besitzen.Weedkillers It has been found that substituted guanidines of the general formula in which Ar denotes an optionally nucleus-substituted aromatic radical and R, and R, represent identical or different primary and secondary amine radicals, have excellent herbicidal activity.
Diese substituierten Guaiüdine lassen sich in einfacher Weise durch Umsetzung von Arylisocyanid-dichloriden mit überschüssigen primären oder sekundären Aminen herstellen. Es ist auch möglich, zunächst mit einem primären oder sekundären Amin nur ein Halogen auszutauschen und dann in zweiter Stufe das Zwischenprodukt mit einem beliebigen an deren Amin umzusetzen. An Stelle von 2 Mol eines Monoamins läßt sich auch 1 Mol eines Diamins, z. B. Äthylendian-dn, anwenden, wobei cyclische Guanidine erhalten werden.These substituted guaiudines can be produced in a simple manner by reacting aryl isocyanide dichlorides with excess primary or secondary amines. It is also possible to first exchange only one halogen with a primary or secondary amine and then to react the intermediate product with any other amine in the second stage. Instead of 2 moles of a monoamine, 1 mole of a diamine, e.g. B. Äthylendian-dn, use, cyclic guanidines are obtained.
Geeignete Amine sind z. B. Monomethylamin, Dimethylamin, Äthylamin, Diäthylamin, Isopropylamin, Cyclohexylamin, Pyrrolidin, Piperidin, Morpholin, Äthanolamin, Diäthanolamin, Äthylendiamin, N,N-Dirnethyläthylendiamin u. s. w.Suitable amines are e.g. B. monomethylamine, dimethylamine, ethylamine, Diethylamine, isopropylamine, cyclohexylamine, pyrrolidine, piperidine, morpholine, ethanolamine, Diethanolamine, ethylenediamine, N, N-dirnethylethylenediamine and so on.
Die Anwendung der substituierten Guanidine, die als freie Basen oder in Form ihrer Salze, z. B. als Chlorhydrate, Acetate, Sulfate, eingesetzt werden können, erfolgt zweckmäßig im, Gemisch mit einem festen oder flüssigen Streckmittel. Auch ist der Zusatz bekannter Herbieide, Entblätterungsmittel oder Ausstreckungmittel möglich und mitunter wünschenswert. Wäßrige und ölige Zubereitungen können außerdem Netzmittel, Emulgatoren oder Dispergierhilfsmittel enthalten.The application of substituted guanidines, which are available as free bases or in the form of their salts, e.g. B. as chlorohydrates, acetates, sulfates, are used can, expediently in a mixture with a solid or liquid extender. Also the addition of known herbicides, defoliants or stretching agents possible and sometimes desirable. Aqueous and oily preparations can also Contain wetting agents, emulsifiers or dispersing aids.
Für eine totale Unkrautvernichtung haben sich bei Pre-emergence-Anwendung folgende Aufwandmengen je ha als ausreichend erwiesen: Bei der Bekämpfung von Senf und Knöterich genügen je nach Stärke des Befalls 2 bis 10 kg der substituierten Guanidine je ha, während zur vollständigen Vernichtung von Gräsern, Melde, Gänsefuß, Kamille und Franzosenkraut bereits Mengen von 1 bis 5 kg Wirkstoff je ha zu behandelnden Bodens ausreichen.For a total weed destruction, the following application rates per hectare have proven to be sufficient with pre-emergence application: When combating mustard and knotweed, 2 to 10 kg of the substituted guanidines per hectare are sufficient, depending on the severity of the infestation, while for the complete destruction of grasses, Melde, goosefoot, chamomile and French cabbage, amounts of 1 to 5 kg of active ingredient per hectare of the soil to be treated are sufficient.
Bei der selektiven Bekämpfung von Unkräutern in Baumwolle- und Möhrenkulturen wurden ebenfalls etwa 1 bis 5 kg Unkrautvernichtungsmittel je ha Anbaufläche angewandt.For the selective control of weeds in cotton and carrot crops, around 1 to 5 kg of weed killers per hectare of cultivated area were also used.
Zur Unkrautbekämpfung geeignete substituierte Guanidine sind z. B. das N,N,N',N'-Tetramethyl-N"-phenylgaanidin, das NN,N',N-Tetramethyl-N"-(4-chlorphenyl)-guanidin, das N,N,N',N'-Tetraäthyl-N"-(3,4-dichlorphenyl)-guanidin, das N,N'-Diinethyl-N"-phenylguanidin, das N',N-Dünethyl-N"-phenylguauidin, das N,N-Peiitainethylen-N',N'-dimethyl-N"-pheiiylguanidin. Beispiel 1 N,N,N',N'-Tetramethyl-N"-phenylguanidin wurde als 0,2l)/,ige Emulsion (unter Zusatz von Aceton als Hilfslösungsmittel und eines handelsüblichen nicht ionogenen Emulgators) auf gemischte Senf-Hafer-Aussaaten 24 Stunden nach der Aussaat aufgespritzt. Die Aufwandmenge betrug hierbei 7,5 kg/ha. Senf und Hafer laufen hierbei zunächst normal auf, sterben aber im Verlaufe von 14 Tagen völlig ab. Beispiel 2 Strauchbohnen wurden mit 0,20/, einer Lösung von N,N,N',N'-Tetramethyl-N"-phenylgua-nidin gespritzt. Die Pflanzen erleiden starke Nekrosen, die zum Absterben führen. Bei Verwendung geringerer Konzentration kann diese Verbindung als Austrocknungsmittel bei der Leguminosen-Saa.tgutgewirmulig benutzt werden.For weed control suitable substituted guanidines are z. B. the N, N, N ', N'-tetramethyl-N "-phenylgaanidine, the NN, N', N-tetramethyl-N" - (4-chlorophenyl) -guanidine, the N, N, N ', N '-Tetraethyl-N "- (3,4-dichlorophenyl) -guanidine, the N, N'-diinethyl-N" -phenylguanidine, the N', N-thinethyl-N "-phenylguauidine, the N, N-peiitainethylene N ', N'-dimethyl-N "-pheiiylguanidine. Example 1 N, N, N ', N'-Tetramethyl-N "-phenylguanidine was added as a 0.2 l) /, strength emulsion (with the addition of acetone as an auxiliary solvent and a commercially available non-ionic emulsifier) on mixed mustard and oat seeds 24 Hours after sowing, the application rate was 7.5 kg / ha. Mustard and oats initially emerge normally, but die completely over the course of 14 days , N, N ', N'-Tetramethyl-N "-phenylgua-nidine injected. The plants suffer severe necrosis, which leads to death. If a lower concentration is used, this compound can be used as a desiccant for leguminous seeds.
Beispiel 3 Gemischte Senf-Hafer-Aussaaten (Senf zwei echte Blätter, Hafer zwei Blätter) wurden mit einer 0,20/,igen wäßrigen Einulsion von N,N,N',N'-Tetrainethyl-N"-phenylguanidin (hergestellt unter Verwendung eines handelsüblichen nichtionogenen Emulgators) gespritzt. Der Senf starb hierbei vollständig ab, der Hafer erlitt nur leichte Schäden und erholte sich wieder. Bei Erhöhung der Aufwandnienge auf 0,5 0/, stirbt auch der Hafer völlig ab.Example 3 Mixed mustard and oat seeds (mustard two real leaves, oats two leaves) were mixed with a 0.20% aqueous emulsion of N, N, N ', N'-tetrainethyl-N "-phenylguanidine (prepared using The mustard died completely, the oats suffered only slight damage and recovered again. If the level of effort was increased to 0.5% , the oats also died completely.
In ähnlicher Weise wirkt auch das N,NiN,N'-Tetramethyl-N"-(4-chlorphenyl)-guanidin.N, NiN, N'-tetramethyl-N "- (4-chlorophenyl) -guanidine also acts in a similar way.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF28640A DE1089210B (en) | 1959-06-08 | 1959-06-08 | Herbicides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF28640A DE1089210B (en) | 1959-06-08 | 1959-06-08 | Herbicides |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1089210B true DE1089210B (en) | 1960-09-15 |
Family
ID=7092963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF28640A Pending DE1089210B (en) | 1959-06-08 | 1959-06-08 | Herbicides |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1089210B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1170931B (en) * | 1962-09-14 | 1964-05-27 | Bayer Ag | Process for the production of substituted guanidines |
DE3517842A1 (en) | 1984-08-30 | 1986-03-13 | Bayer Ag, 5090 Leverkusen | SULFONYLGUANIDINOPYRIMIDINE DERIVATIVES |
US4594092A (en) * | 1982-12-20 | 1986-06-10 | American Cyanamid Company | Substituted nitro and cyanoguanidines and their use of increasing crop yields |
US4602938A (en) * | 1983-03-04 | 1986-07-29 | Bayer Aktiengesellschaft | N'-(substituted-pyrimidin-2-yl)-N"-substituted-N",N"'-bis-(substituted-benzenesulphonyl)-guanidines as herbicides |
US4725304A (en) * | 1984-08-30 | 1988-02-16 | Bayer Aktiengesellschaft | Fluoroalkoxyphenylsulphonylguanidines |
US4741759A (en) * | 1984-08-30 | 1988-05-03 | Bayer Aktiengesellschaft | Oxyguanidine derivatives |
WO1989004595A3 (en) * | 1987-11-19 | 1989-07-27 | Upjohn Co | Ectoparasiticides |
US4944788A (en) * | 1982-12-20 | 1990-07-31 | American Cyanamid Company | Substituted nitro and cyanoguanidines and their use for increasing crop yields |
-
1959
- 1959-06-08 DE DEF28640A patent/DE1089210B/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1170931B (en) * | 1962-09-14 | 1964-05-27 | Bayer Ag | Process for the production of substituted guanidines |
US4594092A (en) * | 1982-12-20 | 1986-06-10 | American Cyanamid Company | Substituted nitro and cyanoguanidines and their use of increasing crop yields |
US4944788A (en) * | 1982-12-20 | 1990-07-31 | American Cyanamid Company | Substituted nitro and cyanoguanidines and their use for increasing crop yields |
US4602938A (en) * | 1983-03-04 | 1986-07-29 | Bayer Aktiengesellschaft | N'-(substituted-pyrimidin-2-yl)-N"-substituted-N",N"'-bis-(substituted-benzenesulphonyl)-guanidines as herbicides |
DE3517842A1 (en) | 1984-08-30 | 1986-03-13 | Bayer Ag, 5090 Leverkusen | SULFONYLGUANIDINOPYRIMIDINE DERIVATIVES |
US4725304A (en) * | 1984-08-30 | 1988-02-16 | Bayer Aktiengesellschaft | Fluoroalkoxyphenylsulphonylguanidines |
US4741759A (en) * | 1984-08-30 | 1988-05-03 | Bayer Aktiengesellschaft | Oxyguanidine derivatives |
WO1989004595A3 (en) * | 1987-11-19 | 1989-07-27 | Upjohn Co | Ectoparasiticides |
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