FIELD: chemistry.
SUBSTANCE: invention relates to a method for obtaining (2E,2' E) -2.2' -(1,2,4-thiadiazol-3,5-diyl)bis[3-aryl(hetaryl)acrylonitriles] of general formula 1, where Ar = 2-(trifluoromethyl)phenyl, 4-ethylphenyl, 2-bromophenyl, 5- methyl-2-furyl, 3,4-bis(benzyloxy)phenyl or 3,4,5-trimethoxyphenyl. The method includes carrying out the reaction of (E)-3-aryl(hetaryl)-2-cyanoprop-2-entioamides with a twofold molar excess of bromine in an N,N-dimethylformamide medium.
EFFECT: increased yields of target products, no toxic, flammable or foul-smelling by-products.
1 cl, 6 ex
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Authors
Dates
2023-08-30—Published
2022-12-06—Filed