SU1780673A1 - Fungicide agent - Google Patents

Description

The invention relates to agriculture, specifically to b1, M-dimethyl-M-decyl acetate-M-ethyl methacrylate ammonium chloride of the formula

CH-ι gn = s CH ₂ -COOC ₁₀ H _W • 2? 4-1 sc

C00-CH, CH <N <

¹ CH3 / er - which has a fungicidal effect against pathogenic fungi of the microflora of the infectious diseases of the silkworm and mulberry, and can be used in sericulture.

N, N-di-methyl-HFdecyl a cetate-I-ethyl methacrylate ammonium chloride was previously used as a monomer to obtain high molecular weight compounds and as a surfactant (Egorov V., Ksenofontova O. B., Batrakova E. V. .. Zubov П.. P., Effect of the nature of the counterion on the colloidal chemical properties of surface active monomers, Colloids, J., Volume I, issue 4, 1988, pp. 821-824).

Closest to the proposed invention is diethylaminoethyl methacrylate, which is part of a weather-resistant, impact-resistant composition, which is pressed into sheets having high tensile strength and high impact strength (Japan Patent No. 49 23821, 1974, RZhKhim, 1975, 9C410).

A comparison of the properties of HfM-dimethyl-HFdecylacetag-M-ethyl methacrylate of ammonium chloride and diethylaminoethyl methacrylate is given in table. 1.

1780673 A1

As can be seen from the table. 1. Ν, Ν-dimethyl-N-decyl acetate-Y-ethyl methacrylate ammonium chloro-:

Rid differs from the analogue in structure in a number of useful properties, such as fungicidal and foaming properties. 5

In sericulture, tetramethyl-thiuramdisulfide (TMTD) is used as a fungicide (N. I. Melnikov, K. V. Novozhilov, T. N. Pylova, Chemical plant protection products, Directory, M., Chemistry, 1980, p. 10 260; A. A. Kravtsov, Η. M. Golyshin, Preparations for the protection of plants, Handbook, M., Kolos, 1984, pp. 97 - 99). The known substance in the form of an aqueous solution in the presence of a wetting agent is used to inhibit the growth of 15 fungi. TMTD is toxic, difficult to decompose, and has the ability to accumulate in the body. In addition, concentrated aqueous solutions of TMTD cause irritation of the mucous membranes of 20 and have side effects in contact with the eyes. ''

These disadvantages can be eliminated by using aqueous solutions of 1CH, 1M-dimethyl-M-dec. Acetate-Y-ethylmethac-25 ammonium chloride rilate, which has low toxicity and no side effects, and also relates to substances of easy biodegradability.

The purpose of the invention is the identification of a new 30 type of action of Ν, Ν-dimethyl-M-decyl acetate N-ethyl methacrylate of ammonium chloride, as well as reducing the toxicity of fungicides.

This goal is achieved by the fact that as a fungicide, aqueous solutions of MI-dimethyl-Y-decyl acetate N-ethyl methacrylate of ammonium chloride are used. The drug is effective at a concentration of 0.3-10%. The proposed compound is readily soluble in water, due to the presence of complex 40-ester groups, it is easily decomposed and is a low-toxic compound.

/ Example (specific implementation). The fungicidal effect of Ν, Ν-dimethyl-I-de-45-ethyl acetate-M-ethyl methacrylate of ammonium chloride was carried out by the method of applying discs impregnated with solutions of the drug in concentrations from 0.3 to 10% on the lawn test cultures. The fungicidal properties of the indicated preparation were emitted on the following fungi Vertlcilllum dahllal, Aspterglllus flavus, Aspergillus nlger, Fusarium monlllforme, Stachybotrys alternans isolated from mulberry chlorosis and silkworm caterpillars. Test cultures were seeded with Chapek's lawn-nutrient medium in Petri dishes. Sown plates, after applying discs, were incubated in a thermostat at 298 K for 48 hours. Disks soaked with sterile water served as a control.

The fungicidal activity of Ν, Ν-dimethylN-decyl acetate-M-ethylmethacrylate of ammonium chloride was evaluated by comparing its properties with the well-known fungicide - TMTD (Table 2).

As a result of the tests, it was found that aqueous solutions of N-N-dimethyl-M-decyl acetate-M-ethyl ammonium chloride methacrylate exhibit fungicidal activity on the pathogen? microflora at a concentration of from 0.3 to 10%. This compound is especially effective at low concentrations, i.e. 0.3%. At these concentrations, the known fungicide TMTD is ineffective.

Ammonium chloride Ν, Ν-dimethyl-M-decyl acetate-M-ethyl methacrylate is surface-active, low-toxic, harmless to humans and animals, which is important for using it as a fungicide in sericulture. ₍

Based on the data presented, it follows that MM-dimethyl-M-decyl acetate-M-ethyl methacrylate ammonium chloride can be recommended as a fungicide in silkworm against pathogenic fungi of silkworm and silkworm microflora.

Claims (1)

Claim ' The use of M, L1-dimethyl-I-decyl acetate-H-ethyl methacrylate ammonium chloride of the formula CH ₃ CH ₂ = C CH _g -COOC ₁₀ N _g1 I-nd COOSN ₉ CH, -KS * sn ₃ C1 ³ as a fungicidal agent in sericulture. Table 1 Suggested substance Structure analogue 1.Formula Formula: sn ₂ = s-sn ₃ SG COO-CH, CH, -N < ³ 1 CH ^. CH, 1 ⁶ sn _g = s ~ sn _{3 g w} ^L I Λ 2 ^ 5 COO-CH, CH, - | < coax ₁₀ n ^ 2.Soluble in water 3. A colloidal solution is formed. 4. It has foaming properties. 5. It exhibits fungicidal properties at a concentration of aqueous solutions from 0.3-10% Soluble in water Forms a true solution Does not possess No fungicidal properties Proposed connection _____ 1_2_b'_l_and_ts_a__2 Famous fungicide Y, Y-dimethyl- * L ^ decylacetate-Methyl methacrylate ammonium chloride CH ₃ CH, = C ^ ^H 2 ^COOC W ^H 2i ² 1 4.1 rw C00CH, CHkN ^ ³ -O ^{C !!} '' Fungicidal activity: Types of pathogenic fungi Tetramethylthiuram disulfide (TMTD) (ch ₃ -) ₂ n - <: - sscn (ch ₃ -) ₂ ss Types of pathogenic fungi from,.% V.dahlial A.fla- Vus Aniger F.moni liforme S. alternaris C% V. dahlia 1 A.fla- vus A.niger F.moni li_f orme S • alternans Zone of inhibition MM Zone of inhibition, mm 10.0 3-6 3 3-10 5 10-17 10.0 3-5 5 5 2 5 5.0 ' 6-7 7-. 3-7 2-5 9, 5,0 2 1 2 T · ’; 2-5 2,5 5 3-5 5-7 3 5-15 2,5 4 1 1 1 2-5 1.25 3-5 3 5-7 3-10 8-15 1.25 4 1 1 4 2 0.6 4 i 3-5 5-10 6-10 0.6 4 1 1 3 2-5 0.3 2-4 3-5 3-5 3-10 3-15 0.3 2 0 0 0 3 46 Pin 0 0 0 0 0 0 0 9 0 0 ' . -0-- abundant growth