CS213521B1 - Fungicide means - Google Patents

Abstract

Fungicidal composition containing tributylcindithiocarbamate of the general formula I “1\ ΖΟ4Η9 N - C - S - Sn —C.Hq / » \ 4 9 r2 S c4h9 (I) where Rj is alkyl with 1 to 4 carbons and Rg is hydrogen or alkyl with 1 to 4 carbons.

Description

The invention relates to a fungioid proatrel, which as an active ingredient contains tert-butyl cidlthiocarbamate of the general formula I \ Z

NCS-Sn — c ₄ N ₉ where is alkyl of 1 to 4 carbon atoms and Rg is a selector atom or alkyl of 1 to 2 carbon atoms.

Several organotin compounds are known for fungicidal protection. In particular, trlbutyltin oxide is the basic component of the commercially available preparation lastanox.

Also R-type compounds.

^x — N - C - S - M, where ti is a metallic element, dithiocarbamates are known for a wide spectrum of bioidal effects

The subject of the present invention is a fungicidal composition, which is characterized by the fact that it contains tributylindithiocarbamate of the general formula I *i <\h ₉ as an active substance

N - C - S - Sn—-C^Hg / I /

X S \

Rg C ₄ H ₉ where R 1 is alkyl of 1 to 4 carbon atoms and R 8 is hydrogen or alkyl of 1 to 4 carbon atoms.

These substances achieve the same or higher fungicidal efficiency, while the newly synthesized substances, which are the basic component of the agent, have more advantageous properties, they do not smell and do not evaporate from protected objects at normal temperatures, they do not decompose under the effect of light, they are more soluble in more solvents than known organotin compounds and can be applied well to porous materials such as lignocellulosic materials. I can find pfeto a better application especially in fingioid protection wood, furniture, historical monuments made of wood, but also as an anti-fungal additive to plasters, paints and varnishes and in other places where the dopoaial commercial agent lastanox is used.

We demonstrate the fungicidal effectiveness of newly synthesized organocinous substances on some examples without ea exclusively applied to these.

Example 1

The poisoned agar soil was obtained by mixing 13.5 ml of 3% malt agar and 1.5 ml of a solution of organotin substances with a concentration of 0.1 | 0.01, respectively 0.001%. Corolius versikolor and Conlphora puteána were inoculated onto the prepared agar. An inoculum of 0.5 x 0.5 mm was obtained with a scalpel. Myoelia growth was superior at 25 + 2° - 0 and BV = 96% for 3 days. The mycelium growth was then measured and the block efficiency was evaluated according to the relationship:

Bt) and ** . 100 *kdš Xjj. - Statistical mean of control mycelia

Xp - Statistical mean mycelia test. samples

Known fungicides were evaluated in the same way.

results when using Coniphora puteánui

213 S21

Concentration BÚ : X»-o- S - Sn/ C ₄ H ₉ / _? tributyltin oxide Substance I Substance II Substance III R^ - CHj ^R 1 ' ^C 2 ^H 5 Ri /lastanox/ Rg - CHj Rg - CgH ₅ Rg - H 0.1 100 100 100 100 0.01 27 100 100 100 0.001 2 51 59 46

Results when using Corolius versicolor:

BÚ

Concentration tributyltin oxide /Laatanox/ Substance I Substance II Substance III 0.1 100 100.. 100 100 0.01 46 100 100 100 0.001 * 75 83 69

Example 2

We impregnated the test bodies made from the wood of Pinus Silvestrie L. with dimensions of 5 x 10 x 50 mm with 0"l i Q.01 and 0.001% aqueous solution / NH^/g SbF^. After air-drying, the bodies (5 pieces) were placed in Kolle flasks in 3% malt agar, which had been previously inoculated and spread with fungal cultures of Conlophora putéana and Merulius lacrimans.

BÚ

0¾ - uh ₈

100%

ÚHj, - weight loss of control bodies ÚH _g - weight loss of impregnated bodies Results when using Meralius laorymans:

Concentration

BÚ:

R,

N - C - S - Sn/C^/j / S >13,331

tributyltin oxide Substance I Substance XV Substance V R _x - CHj «1 ' ^σ 4«9 R - C4H9 R ₂ - CH _? Rg - R - H

0.5 95 98 99 95 0.1 70 95 96 90 0.05 0 24 27 17

Example 3

Test bodies 2 of pine wood were impregnated with a solution of substances I - V and used for the laboratory test aa plasne. So it was used Geneva mixture of suspension of fungal cultures and exposure for 15 days. Mold growth was controlled according to CSN 49 0605.

At conc. 0.1% all samples used were resistant, while the sample impregnated with tributyltin oxide was only partially resistant. At a concentration of 0.01, some samples were partially resistant, and the sample impregnated with tributyltin oxide - non-resistant.

Claims (1)

A fungicidal composition characterized in that it contains as active substance tributyloíndir thiocarbamate of the general formula 1 ^* \ N - C - S - Sn / sec / ° 4 ^H 9 _ c4h9 ^X c4h ₉ R ₁ where R ₁ is alkyl of 1 to 4 carbon atoms and R 1 is hydrogen or alkyl of 1 to 4 carbon atoms.