The present invention relates to a process and a reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function. This persulphonylation process is characterized in that it comprises a step of placing a nucleophile, whose nucleophilic atom is a nitrogen, in contact with a reagent comprising, for successive or simultaneous addition, a heavy halide of sulphonyl, advantageously sulphonyl chloride, and an organic base comprising a trivalent atom from column V whose lone pair is conjugated directly or indirectly to a bond, and in that the organic part of the said sulphonyl is perhalogenated, advantageously perfluorinated, on the carbon borne by the sulphur. Application to the synthesis of intermediates for organic chemistry.
本发明涉及一种用于合成磺酰
苯胺的工艺和试剂,这种磺酰
苯胺在磺酰
苯胺官能团的
硫原子所带的碳上被过卤化。这种过磺酰化工艺的特点是,它包括一个步骤,将一个亲核原子为氮的亲核体与一种试剂接触,该试剂包括磺酰基的重卤化物(最好是
磺酰氯),用于连续或同时加成、和有机碱,有机碱包括 V 列中的一个三价原子,该原子的孤对键直接或间接轭合,并且上述磺酰基的有机部分在
硫所含的碳上被全卤化,最好是
全氟化。应用于有机
化学中间体的合成。