Trifluoromethylthiolation/Selenolation and Lactonization of 2-Alkynylbenzoate: The Application of Benzyl Trifluoromethyl Sulfoxide/Selenium Sulfoxides as SCF<sub>3</sub>/SeCF<sub>3</sub> Reagents
作者:Haofeng Shi、Xingzong Wang、Xiaoxian Li、Beibei Zhang、Xuemin Li、Jingran Zhang、Jingyue Yang、Yunfei Du
DOI:10.1021/acs.orglett.2c00563
日期:2022.3.25
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 triflu
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。