FIELD: organic chemistry. SUBSTANCE: product: derivatives of arylsulfonylurea or their salts of the formula (I) where R1 ethyl, propyl, isopropyl; R2 halogen, CF3, C1-C3-alkyl, C1-C3-alkoxy, C1-C2-alkoxycarbonyl; n 0-1; R3 H or methyl; R4 methoxy or methyl; R5 methoxy, methyl, chlorine; E N or CH. Reagent 1: compound of the formula (II) . Reagent 2: NR3NR6. Reaction condition: in the medium of inert aprotonic solvent. Synthesized compounds were used in agriculture. EFFECT: improved method of synthesis. 11 tbl
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UNDESIRABLE VEGETATION CONTROL METHOD | 0 |
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SU1741598A3 |
Authors
Dates
1995-08-09—Published
1992-03-10—Filed