| 摘要 |
A process is described for the preparation of N-(1'-alkoxycarbonylethyl)-2,6-dialkylanilines of the formula <IMAGE> in which R1 and R2 are each methyl or ethyl and R3 is an alkyl group having 1 to 4 carbon atoms, this process being based on the reaction of a corresponding 2,6-dialkylaniline with a corresponding alkyl 2-bromopropionate. The process is carried out by carrying out the reaction of the 2,6-dialkylaniline with the alkyl 2-bromopropionate at 110 DEG to 125 DEG C. in excess 2,6-dialkylaniline as the solvent, in the presence of a quaternary compound of nitrogen or of phosphorus, and in the presence of an alkali metal carbonate or alkali metal bicarbonate as an acid acceptor, distilling off the water formed during the reaction and working up the organic phase, which is obtained after adding water and separating the phases, by distillation. The N-(1'-alkoxycarbonylethyl)-2,6-dialkylanilines of the above formula which can be prepared by this process are valuable intermediates for the preparation of compounds having a pesticidal action.
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