PYRIDINESULFONEAMIDE AND ITS SALTS, HYDRATES AND COMPLEXES WITH -ALCOHOLS USEFUL IN AGRICULTURE, HERBICIDE COMPOSITIONS, METHOD OF STRUGGLE AGAINST WEEDS, METHOD OF STRUGGLE AGAINST FOXTAIL (ALOPECURUS), AN INTERMEDIATE COMPOUND FOR ITS SYNTHESIS Russian patent published in 1998 - IPC

FIELD: organic chemistry, agriculture. SUBSTANCE: invention relates to pyridinesulfoneamide of the formula: and its salts, hydrates and lower alcohols that can be used in agriculture. Herbicide composition for struggle against weeds has the claimed compound (I) as an active component taken at effective amount. Invention relates to also the new compound of the formula (II) that is an intermediate compound for synthesis of compound of the formula (I). EFFECT: improved method of synthesis. 9 cl, 8 tbl