| 摘要 |
An improved process for producing N-substituted N-acetyl-2,6-dialkylanilines of the formula <IMAGE> in which R1 and R2 independently of one another are each methyl or ethyl, A is a 1,2-ethylene group which can be substituted by 1 or 2 methyl groups, or a 2-oxo-1,2-ethylene group which can be substituted by 1 or 2 methyl groups, R3 is an alkyl group having 1 to 3 carbon atoms, and X represents chlorine or an alkyl group having 1 to 3 carbon atoms, is disclosed, which process comprises reacting a N-substituted-2,6-dialkylaniline of the formula <IMAGE> in which R1, R2, R3 and A have the meaning given above with an acetyl chloride of the formula X-CH2-CO-Cl in which X has the meaning given above, in an excess of said acetyl chloride as solvent. The N-substituted-N-acetyl-2,6-dialkylanilines of the above formula can be used for protecting plants from being infected by phytopathogenic microorganisms.
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