| 摘要 |
A process for the preparation of 1-(pyrimidin-2-yl)propan-2-ones of general formula (I), in which R is in each case a C<SUB>1-10</SUB>-alkyl group, a C<SUB>3-8</SUB>-cycloalkyl group, an alkyl group or an aryl-C<SUB>1-4</SUB>-alkyl group. For this, a malondiimidate of the general formula (II), in which R has the meaning given above, is reacted with diketene. The compounds which can be prepared according to the invention are intermediates for the synthesis of agrochemical active ingredients. |
