| abstract |
The present invention relates to microbicides for agriculturalnor horticultural use containing sulfonamide derivative of, fornexample, a formula (I):n nor a salt thereof, n[wherein A 1 is (1) an aryl group which may be substituted or (2)na heterocyclic group which may be substituted, X 1 is (1) a chemicalnbond, (2) a methylene group which may be substituted, or (3) anvinylene group which may be substituted, B 1 is a five-memberednheterocyclic group comprising nitrogen or sulfur atoms as thenring-constructing atoms except for carbon atoms and may bensubstituted or a condensed heterocyclic group which may bensubstituted, Z 1 is (1) a hydrocarbon group which may be substituted,n(2) an acyl group which may be substituted, (3) formyl group, (4)nan amino group which may be substituted, (5) a group representednby -N=CR 1 R 2 (wherein each of R 1 and R 2 is a hydrogen atom or anhydrocarbon group which may be substituted), (6) a cyclic aminongroup, (7) a group represented by -OR 3 (wherein R 3 is a hydrogennatom, a hydrocarbon group which may be substituted, an acyl groupnwhich may be substituted, formyl group or an alkylsulfonyl groupnwhich may be substituted) or (8) -S(O) n R 4 (wherein n stands for anninteger from 0 to 2, R 4 stands for a hydrogen atom or a hydrocarbonngroup which may be substituted). The said compounds or the saltsnthereof are sulfonamide derivatives with microbicidal action, are nuseful as excellent microbicides for agricultural or horticulturalnuse, because they are safe, and they have little influence on humannbeings, farm animals, natural enemies, or the environment, and exertnexcellent control effects even on resistant microbes. |