2-(N-ARYL,N-1,2,3-THIADIAZOLYLCARBONYL)- AMINOBUTYROLACTONES, THEIR PREPARATION, FUNGICIDAL AGENTS CONTAINING THESE COMPOUNDS, AND THEIR USE AS FUNGICIDES

摘要

2-(N-Aryl,N-1,2,3-thia-diazolylcarbonyl)-aminobutyrolactones of the formula where R1 is alkyl, R2 is hydrogen, alkyl or halogen, R3 is hydrogen, alkyl or halogen, R4 is unsubstituted or substituted 1,2,3-thiadiazolyl and R5,R6 and R7, independently of one another, are hydrogen or methyl, and fungicides containing these compounds.