FIELD: chemistry.
SUBSTANCE: invention relates to the field of organic chemistry, in particular, to a method of obtaining N, N'-bis-(2-hydroxyethyl)tetrathiadiazacycloalkanes of the general formula 
(1) 1a n=3, 1b n=4, 1c n=5, 1d n=6. The essence of the method consists in the interaction of a formaldehyde mixture and α,ω-dithiol with 2-aminoethanol with the molar ratio of formaldehyde : α,ω-dithiol : 2-aminoethanol = 2:1:1 at room temperature (~20°C) and atmospheric pressure for 2.5-3.5 h. The invention also relates to the application of the formula (1) compounds as means with fungicidal activity for fighting fungal diseases of agricultural cultures.
EFFECT: obtaining the formula (1) compounds, possessing the fungicidal activity against Bipolaris sorokiniana and Rhizoctonia solani.
2 cl, 5 tbl, 1 ex
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