Synthesis of F28 Tetraphenylporphyrin and Its Application to the Separation and Detection of Lithium(I)

摘要

2,3,7,8,12,13,17,18-Octafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porphyrin (F28 tetraphenylporphyrin; OFTPFPP) was synthesized by the condensation of 3,4-difluoropyrrole and pentafluorobenzaldehayde. 3,4-Difluoropyrrole was prepared from 2,2,3,3-tetrafluorosuc- cinic acid as the starting material through 5-step reaction processes. The acid-dissociation con- stants of OFTPFPP were determined by a solvent-extraction method in the presence of tetrabuty- lammonium chloride (0.1 mol dm~-3).