SUBSTITUTED HETEROCYCLIC COMPOUNDS, METHODS OF THEIR SYNTHESIS, INTERMEDIATE COMPOUNDS, METHOD OF CONTROL OVER WEEDS Russian patent published in 1999 - IPC

FIELD: organic chemistry, heterocyclic compounds. SUBSTANCE: invention relates to substituted heterocyclic compounds of the formula (I) where E - oxygen or sulfur; A means CR³ or N; R³ - hydrogen or lower alkyl; D completes 5- or 6-membered nonaromatic heterocyclic ring that has optionally additional heteroatoms taken from oxygen, nitrogen or sulfur and can be substituted with C_1-10-alkyl or phenyl; R¹ and R² - hydrogen, alkyl, alkenyl, alkynyl, cyclopropyl, cyclopropylmethyl, cyclohexyl, adamantyl, phenyl or pyridyl; or R¹ and R² together with nitrogen atom to which they are bound form morpholine ring; Z - halogen, cyano-group, NHOH, SF₅, acylamino-group, COOR⁷, NR¹³R¹⁴, dibenzylaminosulfonyl; or Z - alkyl, alkenyl, alkoxy, phenoxy, alkylthio, alkylsulfonyl or CO-alkyl and each group can be substituted with halogen or C_1-6-alkoxy- -group; R⁷ is C_1-10-alkyl; R¹³ and R¹⁴ - hydrogen or SO₂--alkyl; m = 0, 1 or 2. Compounds of the formula (I) show activity against broad order of weeds including monocotyledonous and dicotyledonous species. EFFECT: improved method of synthesis, enhanced effectiveness of compounds. 15 cl, 9 dwg, 17 tbl, 102 ex