Formation of perfluorinated polyphenylenes by multiple pentafluorophenylation using C6F5Si(CH3)3
摘要:
Pentafluorophenylation of perfluoroarenes with C6F5Si(CH3)(3) was investigated by using NMR and MALDI-TOF-MS techniques. Successive multiple pentafluorophenylation easily occurred not only on the para-position but also on the ortho-positions to provide perfluorinated p-phenylene and m-phenylene compounds. The perfluoroarenes having electron-withdrawing substituents provided oligo- to poly-(phenylene)s depending on the added amounts of C6F5Si(CH3)(3), while the perfluoroarenes having electron-donor substituents gave H(C6F4)(n)F polymers produced from C6F5H, which was the decomposed product of C6F5Si(CH3)(3). (C) 2010 Elsevier B.V. All rights reserved.