The combined use of BnS(O)CF₃/BnSe(O)CF₃ with Tf₂O as SCF₃/SeCF₃ reagents was implemented to realize an efficient synthesis of biologically interesting 4-(trifluoromethylthio/trifluoromethylseleno)isocoumarins from 2-alkynylbenzoates. The mechanistic pathway was postulated to involve formation of the electrophilic SCF₃/SeCF₃ species via interrupted Pummerer reactions followed by a concerted trifluoromethylthiolation/selenolation and lactonization process.

中文翻译：

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2-苯甲酸炔酯的三氟甲基硫醇化/硒醇化和内酯化：苄基三氟甲基亚砜/硒亚砜作为 SCF3/SeCF3 试剂的应用

实施了BnS(O)CF ₃ /BnSe(O)CF ₃与Tf ₂ O作为SCF ₃ /SeCF ₃试剂的联合使用，以实现从2-炔基苯甲酸酯高效合成具有生物学意义的4-(三氟甲硫基/三氟甲基硒)异香豆素. 假定机制途径涉及通过中断的Pummerer反应形成亲电SCF ₃ /SeCF _{3物质，然后是协同的三氟甲基硫醇化/硒化和内酯化过程。}