Fluoro-decarboxylation of pyrrolecarboxylic acids by F–TEDA–BF<sub>4</sub>– a convenient general synthesis of fluoropyrroles
作者:Jianji Wang、A. Ian Scott
DOI:10.1039/c39950002399
日期:——
Reaction of a range of α-pyrrolecarboxylic acids, in which the ring is highly substituted by electron-withdrawing or -donating groups, with 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis (tetrafluoroborate)(FâTEDAâBF4) gives the corresponding α-fluoropyrroles in 32â47% yields; 2-fluoroporphobilinogen (FâPBG), of potential use as an inhibitor of the enzyme porphobilinogen (PBG) deaminase, has been synthesized by this method.
一系列β-吡咯羧酸的反应,其中环被吸电子或给电子基团高度取代,与1-氯甲基-4-氟-1,4-二氮杂双环[2.2.2]辛烷双(四氟硼酸盐)(F-TEDA-BF4)反应,以32-47%的产率得到相应的β-氟吡咯;2-氟卟啉原(F-PBG)可用作酶卟啉原(PBG)脱氨酶的抑制剂,已经通过这种方法合成。