The present application relates to a process based on the oxidative ring opening of a compound with oxindole structure for preparation of substituted 2-(triazinylcarbonyl)sulfonanilides of the formula (1-1) proceeding from N-sulfonyl-substituted 3-triazinyloxindole of the formula (2-1), and to the 2-(triazinylcarbonyl)sulfonanilides of the formula (1-1) thus prepared, and to the use thereof as intermediates for the synthesis of fine chemicals and of active ingredients in the agricultural sector.
The invention also relates to a multistage process for preparation of N-alkyl-N-[2-(1,3,5-triazin-2-ylcarbonyl)phenyl]alkanesulfonamides of the formula (4-1), proceeding from a 3-(alkylsulfanyl)-1,3-dihydro-2H-indol-2-one of the formula (7-1), wherein the multistage process also comprises, as a component step, the oxidative ring opening mentioned, and to the 2-(triazinylcarbonyl)sulfonanilides of the formula (1-1) which are obtained by the oxidative ring opening and are used as intermediates in the multistage process.
本申请涉及一种基于含氧杂环结构化合物的氧化开环过程,用于制备公式(1-1)的取代2-(三嗪基羰基)磺酰
苯胺,该过程从公式(2-1)的N-磺酰基取代的3-三嗪氧杂环开展,以及由此制备的公式(1-1)的2-(三嗪基羰基)磺酰
苯胺,以及将其用作合成
精细化学品和农业领域活性成分的中间体。本发明还涉及一种多级过程,用于制备公式(4-1)的N-烷基-N-[2-(
1,3,5-三嗪基羰基)苯基]烷基磺酰胺,该多级过程从公式(7-1)的3-(烷基磺酰基)-1,3-二氢
吲哚-2-酮开始,其中多级过程还包括作为组分步骤的氧化开环,并且由氧化开环得到的公式(1-1)的2-(三嗪基羰基)磺酰
苯胺用作多级过程中的中间体。