IL30561A - Sulphonic acid salts of substituted guanidines - Google Patents

Sulphonic acid salts of substituted guanidines

Info

Publication number
IL30561A
IL30561A IL6830561A IL3056168A IL30561A IL 30561 A IL30561 A IL 30561A IL 6830561 A IL6830561 A IL 6830561A IL 3056168 A IL3056168 A IL 3056168A IL 30561 A IL30561 A IL 30561A
Authority
IL
Israel
Prior art keywords
plants
fungi
compound
acid salts
active
Prior art date
Application number
IL6830561A
Other versions
IL30561A0 (en
Original Assignee
Bayer Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of IL30561A0 publication Critical patent/IL30561A0/en
Publication of IL30561A publication Critical patent/IL30561A/en

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Description

Sulphonic acid salta of substituted guanidines FARBBNFABRIKEN BAYER AKTIENGESBLLSCHAFT C. 28801 of formula (1) in which a sulphonio acid S-alkyllsothiouronium othyl ootoro, 4 toluonooulphonio aoid mothyl or ot&y-l—es-te-re-? 3-iiiti-ob.onBonoouiphonio aoid methyl or otJfry.l o e eaiTCi or dimethyl-aminosulphonic acid methyl esters.
The reaction according to the invention is expediently 'carried out in the presence of a solvent (this term includes mere diluents) . Examples include water and mixtures of water and lower alcohols, such as methanol and ethanol, as well as ethers, such as dioxan or water-immiscible solvents such as hydrocarbons, for example toluene, and chlorinated hydrocarbons, such as chlorobenzene.
The reaction, temperatures can be varied within a fairly wide range. In general, the reaction is carried out at 10 to 120°C, preferably 30 to 100°C.
In carrying out the process according to the invention, approximately 1 mole of the amine of Formula (3) i-s generally used for each mole of the isothiouronium salt of liormula (2). Working up may take place in manner known per se, i'or example by distilling off the solvent in a vacuum.
The active compounds according to the invention exhibit strong fungicidal activity. Because of their low toxicity to warm-blooded animals they are suitable for the control of undesired plant growth and their good compatibility wit higher plants permits their use as plant protection agents against fungal plant diseases.
They are particularly well suited for the control of parasitic fungi on above-soil parts of plants. These fungi include Phytophthora species, Alternaria species, Botrytis cinerea and Septoria species. The active compounds are particularly effective against the causative organisms of scab diseases, such, as apple scab and pear scab, that is the Venturia species .
The active compounds according to the present invention may be produced in known manner, for example by mixing the · active compounds with extenders, that is, liquid or solid diluents or carriers, optionally with the use of surface-active .agents, that .is, * emulsifying agents and/or dispersing agents. In the case of the use of water as an extender, organic, solvents can, for example, also be used as auxiliary solvents.
As liquid diluents or carriers, there are preferably used aromatic hydrocarbons such as xylenes or benzene, chlorinated aromatic hydrocarbons, such as chlorobenzenes, paraffins, such as mineral oil fractions, alcohols, such as methanol- or butanol, or strongly polar solvents, such as dimethyl formamide or dimethyl sulphoxide, as well as water.
As solid diluents or carriers, there are preierably sed. ground natural minerals, such as Kaolins, clays, t>..lc or cnalk, or ground synthetic minerals, such as highly-dispersed silicic acid or silicates. 1 Preferred examples of emulsifying agents include non-ionic, and anionic emulsifiers, such as polyoxyethy!ehe-fatty acid estas-, polyoxyethylene-fatty alcohol ethers, for example alkylarylpolyglycol ethers, alkyl sulphonates and aryl sulphon- ates; and preferred examples of dispersing agents include lignin. sulphite waste liquors and methyl cellulose.
The active compounds may be used as such or in the form of their formulatioris or of the application forms prepared therefrom, ;such as ready-to-use solutions, emulsions, · suspensions, powders, pastes and granulates. Application may take place in the usual manner, for example by spraying,- squirting, watering or scattering.
The concentrations of the active compounds in the ready-to-use application forms can be varied within a wide range. In general, they are from 0.001 to 1#, preferably from 0.003 to 0.5?°. containing as active ingredient a. compound according to the invention in admixture with a solid diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent.
The invention also provides a method of combating fungi which comprises- applying to the fungi or a fungus habitat a compound according to the invention alone or in the form of a composition containing as active ingredient a compound according to the invention in admixture with a solid or. liquid diluent or carrier...
The invention: also provides plants, especially fruit plants., protected from damage by fungi by the application there to of a compound. according to the invention alone or in admixture with a solid or liquid diluent or carrier. The invention also provides fruit grown on such plants.
The fungicidal effectiveness of the compounds of the invention is illustrated- by the - following Examples A-C.
Example A Fusicladium test (apple scab) (Protective) Solvent: 4.7- parts by weight acetone Emulsifier: 0.3 part by weight alkylaryl polyglycol ether Water:. 95 parts by weight The amount of active compound required for the desired concentration of the active compound in the spray liquid is mixed with the stated amount of solvent, and the concentrate is diluted with the stated amount of water which contains the stated additions.
Young apple seedlings in the 4-6 leaf stage are sprayed with the spray liquid. until dripping wet. The plants remain in a greenhouse for 24 hours at 20°C and at a relative atmospheric humidity of 70#. They are then inoculated with an aqueous. conidium suspension of the apple scab causative organ humidity of 100#.
The plants then again come into a greenhouse for 14 days. days after inoculation, the infestation of the seedlings is determined as a percentage of the untreated but also inoculated control plants.
Qo means no infestation; 100$ means that the infestation is exactly as great as in the case of the control plants.
The active compounds, the concentrations of the active compounds and the results can be seen from the following Table 1: 30561/2 Table 2 (Contd) Pusicladjum test (Protective) Infestation as a percentage of the. infestation of the untreated control with a concentration of active compound (in ) of Active compound 0.0062 Pusicladium test (apple scab) [Curative] Solvent: 4.7 parts b weight acetone Emulsifier: 0.3 part by weight alkylaryl polyglycol ether Water: 95 parts by weight The amount of active compound required for the desired concentration of the active compound in the spray liquid is mixed with the stated amount of solvent, and the concentrate is diluted with the stated . amount of water which contains the stated additions.
Young apple seedlings in the 4 - 6 leaf stage are inoculated with an aqueous - conidium suspension of the apple scab causative organism Pusicladium dendriticum Puck and incubated for 18 hours in a humidity chamber at 18-20°C and at an atmospheric humidity of 100$. The plants then come into a greenhouse. They dry.
After standing for a suitable period of time, the plants are sprayed dripping wet with the spray liquid prepared in the manner described above. The plants then again oome into Le A 11004 - 10 - The process of the invention is illustrated by the following Example 1;- Example 1 .

Claims (1)

1. 30561/2 according to any of Claims 1 to 9 Or 15 In dmixture with a solid diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent. 17. A composition according to Claim 16 containing from 0.001 to 95$ and preferably from 0.001 to 1% by weight of the active compound. ;; 18. A method of combating phytopathogenic fungi which oomprlses applying t-o such fungi or fungus habitat a compound according to any of Claims 1 to 9 or 15 alone or in tie form of a composition according to Claims 16 or 17. 19. A method according to Claim 18 in which a composition is used containin from 0.001 to 1$ by weight of the active compound. 20. A method according to Claim 18 or 19 in which the fungi are the causative organisms of scab diseases of plants* 21. method accordin to any of Claims 18 to 20 in which the compound is one of those hereinbefore mentioned in Example A.
IL6830561A 1967-09-15 1968-08-16 Sulphonic acid salts of substituted guanidines IL30561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0053606 1967-09-15

Publications (2)

Publication Number Publication Date
IL30561A0 IL30561A0 (en) 1968-10-24
IL30561A true IL30561A (en) 1971-12-29

Family

ID=7106465

Family Applications (1)

Application Number Title Priority Date Filing Date
IL6830561A IL30561A (en) 1967-09-15 1968-08-16 Sulphonic acid salts of substituted guanidines

Country Status (2)

Country Link
IL (1) IL30561A (en)
NL (1) NL6813057A (en)

Also Published As

Publication number Publication date
IL30561A0 (en) 1968-10-24
NL6813057A (en) 1969-03-18

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