Pentafluorophenyl formate reacts smoothly with N-nucleophiles under  mild conditions to give the N-formyl derivatives, whereas O- and S-  nucleophiles remain unaffected even in the presence of a tertiary base.
                                    在温和的条件下,五
氟甲酸苯酯能与 N-亲核物顺利反应,生成 N-甲酰基衍
生物,而 O-和 S-亲核物即使在三级碱存在的情况下也不受影响。