作者:Jianji Wang、A.Ian Scott
DOI:10.1016/s0040-4039(00)73070-x
日期:1994.5
Direct fluorination of the pyrrole ring with electron-withdrawing groups, such as, CHO, COR, COOR, CONR2, using xenon difluoride under mild conditions leads to the corresponding fluoropyrroles in 25–54% yields. It was found that fluorination takes place only at the α-position of the pyrrole even when the β-position is also free.
在温和条件下,使用二氟化氙在带有吸电子基团(例如CHO,COR,COOR,CONR 2)的吡咯环上进行直接氟化,得到相应的氟吡咯,产率为25-54%。发现即使在β位也自由的情况下,氟化也仅在吡咯的α位发生。