4-ACYLAMINOPYRAZOLE DERIVATIVES

摘要

4-Acylaminopyrazole derivatives of the general formula (I) or salts thereof, exhibiting excellent fungicidal activities against various plant pathogenic fungi; and pesticides containing the derivatives or the salts as the active ingredient: (I) wherein R<1> is hydrogen, optionally substituted C1-16 alkyl, or the like; R<2> and R<3> are each independently hydrogen, halogeno, optionally substituted C1-6 alkyl, or the like; R<4> is hydrogen, C1-6 alkyl, or cyano; Z is oxygen or sulfur; Ar is optionally substituted C6-14 aryl or an optionally substituted 5- or 6-membered unsaturated heterocyclic group; and B is hydrogen, halogeno, optionally substituted C1-16 alkyl, or the like.