FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for preparing condensed 2-hetarylimidazoles of the general formula:
using diamine of the general formula
wherein A means
R means 2-furyl, 2-thienyl, 2-(1-methyl)-pyrrolyl, 3-(1-methyl)-indolyl and aldehydes in the presence of copper acetate or sulfate. Interaction of reagents are carried out at boiling in 50% acetic acid followed by decomposition of copper salt by effect with sodium thiosulfate on it suspension in 50% acetic acid at 100oC. Invention provides enhancing technological effectiveness of process.
EFFECT: improved preparing method.
2 cl, 2 tbl, 1 ex
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