PYRIDINE SULFONAMIDE DERIVATIVE SHOWING HERBICIDAL ACTIVITY Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: product - N-[4,6- dimethoxypyrimidine -2-yl- (aminocarbonyl)] -3-dimethylaminocarbonyl -2-pyridine sulfonamide of the formula (I) C₁₃H₁₈N₆O₆S, empirical formula is Z₁ - NH₂; m. p. is 169-173 C. Reagent 1: compound of the formula (II) NHCOOR₅. Reagent 2: compound of the formula (III) Z₂ - NH₂ where NHCOOR₅-group, -NCO, NHCOCl or ; , NCO, NHCOCl, , R - alkyl or aryl. Reaction conditions: in the medium of organic solvent at the room temperature. Synthesized compounds were used as herbicides in agriculture. EFFECT: improved method of synthesis. 5 tbl