| 摘要 |
N-Sulphenylated biuret-N''-carboxylic acid esters of the general formula <IMAGE> (I) in which R1 and R2 can be identical or different and represent an optionally substituted aliphatic, cycloaliphatic, aromatic or araliphatic radical, R3 represents a hydrogen atom or an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radical and R4 represents a trihalogenomethyl radical, are obtained by the reaction of an acyl isocyanate of the general formula <IMAGE> (II) with a sulphenamide of the general formula <IMAGE> (III) if appropriate in the presence of a diluent. The compounds of the formula (I) are new. They can be used as pest-combating agents which are microbicides, especially fungicides or bactericides.
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