SACCHARIN DERIVATIVES AND HERBICIDAL AGENT Russian patent published in 2000 - IPC

FIELD: agriculture. SUBSTANCE: described are new saccharin derivatives of formula I : wherein N and L are hydrogen, alkyl, alkyloxy, alkylthio, chlorine, cyano, methylsulfonyl, nitro or trifluoromethyl; J is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, acyl, phenyl, optionally substituted by halogen or alkyl, benzyl; optionally substituted cyclohexane-1,3-dione ring bonded in position 2 of formula II: wherein R¹-R⁶ are hydrogen or methyl, either, if R¹, R², R³, R⁵ and R⁶ are hydrogen, R⁴ is 2- ethylthiopropyl, tetrahydrothiopyranyl-3 or methylthiocyclopropyl, or R¹, R⁴, R⁵ is hydrogen, and R⁶ is methyl, then R² and R³ form bicyclo-(4.1.0) heptane ring of formula III: , and salts thereof usually used in agriculture. Also described are herbicidal agent and conventional inert additives which are useful controlling pests. EFFECT: new herbicide. 5 cl, 17 ex, 1 tbl