Trifluoromethanesulfinyl Chloride for Electrophilic Trifluoromethythiolation and Bifunctional Chlorotrifluoromethythiolation
作者:Lvqi Jiang、Qiang Yan、Rongkang Wang、Tianqi Ding、Wenbin Yi、Wei Zhang
DOI:10.1002/chem.201804027
日期:2018.12.12
Trifluoromethanesulfinyl chloride (CF3SOCl) has been introduced as a new reagent for C−H trifluoromethylthiolation of indoles, thiophenes, and ketones under catalyst‐free conditions and in the absence of reductant. The disproportionation of CF3SOCl to CF3SO2Cl and CF3SCl provides two pathways for the trifluoromethylthiolation. Direct trifluoromethylthiolation with CF3SCl or trifluoromethylsulfoxidation
三氟甲亚磺酰氯(CF 3 SOCl)已被引入为一种在无催化剂条件下且没有还原剂的条件下对吲哚,噻吩和酮进行C-H三氟甲基硫醇化的新试剂。CF 3 SOCl与CF 3 SO 2 Cl和CF 3 SCl的歧化为三氟甲基硫醇化提供了两条途径。用CF 3 SCl直接进行三氟甲基硫醇化或用CF 3 SOCl直接进行三氟甲基硫氧化,然后用CF 3 SOCl还原。该试剂可用于在Ag 2 CO 3的促进下官能化苯并噻吩,苯并呋喃和茚满。它也可用于硫醇和苯硒酚的三氟甲基硫醇化,以及吲哚,苯乙烯和炔烃的1,2-双官能氯三氟甲基硫醇化。该方法还可以扩展为使用CF 2 HSOC1进行二氟甲硫基化反应。