FIELD: chemistry.
SUBSTANCE: invention relates to a novel salt of N1,N1,N4,N4 tetramethyl-2-butyn-1,4-diamine with 2,4-dichlorophenoxyacetate of structural formula (1) having herbicidal activity. The compounds are active especially in relation to annual and perennial dicotyledonous weeds. The compound is a salt corresponding to the structural formula . The invention also relates to a process of preparation of a salt of a compound (1). The method consists in subjecting the N1,N1,N4,N4-tetramethyl-2-butyn-1,4-diamine with an equimolar amount of an aqueous solution of 2,4-dichlorophenoxyacetic acid at atmospheric pressure, preferably at a temperature of 20-25°C and stirring for 2.5-3.0 hours. The yield of the product is 90-99%.
EFFECT: new compound is superior to the herbicidal activity of the known compound.
4 cl, 2 tbl 5 ex
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Authors
Dates
2017-07-31—Published
2016-05-26—Filed