A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.
1
公式(3)的2-(N-甲基-N-甲磺酰
氨基)
嘧啶化合物,其中 [R 为烃基],的制备步骤如下:(I)在质子化合物和
金属盐的存在下,将异丁酰
乙酸酯与4-
氟苯甲醛和
脲反应;(II)氧化步骤(I)的反应产物;(III)将步骤(II)的氧化产物与有机磺
酰卤或有机磺酰酐反应;(IV)将步骤(III)的反应产物与N-甲基-N-甲磺酰胺反应。