METHOD OF PREPARING AROMATIC COMPOUNDS CONTAINING HETEROCYCLIC SYSTEM

摘要

FIELD: chemical industry. SUBSTANCE: method comprises preparing new aromatic compounds containing heterocyclic system of general formula II wherein R1 and R2 are the same or different and are hydrogen, halogen, hydroxy group, halogenalkyl radical or alkoxy radical containing from 1 to 6 carbon atoms, phenoxy radical, C1-C6 alkyl radical, C2-C6 alkenyl radical, group selected from -CHO formyl or -COCH3 carboxyl radical, acetyl radical, Y-CHO or Y-COOH radicals wherein Y is C1-C6 alkylene radical or they are NO2 or NR3R4 wherein R3 and R4 are the same or different and are selected from hydrogen or C1-C4 alkyl, and reacting catechin optionally substituted with methylene dihalide in basic medium and in the presence of basic medium comprising substantially N- methylpyrrolidone. EFFECT: simplified process and increased yield of desired product. 8 cl, 8 ex