| abstract |
The present invention relates to 1,2,3-thiadiazole compounds represented by the formula (I) wherein each of R, R, R, R and R 1 is H, halogen, CN, alkyl, alkoxyalkyl, aryl, arylalkyl, alkylcarbonyl or the like. ; R is —C = (W) Y R, where R is H, alkyl, alkenyl, phenylcarbonyl, a heterocyclic carbonyl ring, arylsulfonyl, or the like; Y represents O, S, —N (R), —N (R) O—, where R is H, alkyl, cycloalkyl, substituted phenyl or the like; W is O or S; and the symbols in the formula are defined in detail in the description, or their salts and to the agent for controlling plant diseases for use in agriculture and horticulture, which contains the compounds as active ingredients. |