全氟磺酸树脂是一种全氟型的高聚物,它具有良好的化学稳定性和热稳定性。分子中氟原子的强烈电负性使磺酸呈现很强的酸性,有极强的催化活性。Olah等用这种固体超强酸树脂作催化剂,对芳环的硝化、Friedel-Crafts反应、烯烃和炔烃的水化、重排和酯化等反应进行了研究。在酯化反应中他们将醋酸和醇(克分子比为3:1)在催化剂存在下迴流,得到酯的产率为40％—60%。本文用醋酸和稍过量的醇在催化剂存在下迴流进 Perfluorosulfonic acid resin is a perfluorinated polymer, it has good chemical stability and thermal stability. The strong electronegativity of the fluorine atom in the molecule makes the sulfonic acid show strong acidity and has extremely strong catalytic activity. Using this solid superacid resin as a catalyst, Olah et al. Studied the nitration of aromatic rings, the Friedel-Crafts reaction, the hydration, rearrangement and esterification of olefins and alkynes. In the esterification reaction they refluxed acetic acid and alcohol (3: 1 molar ratio) in the presence of a catalyst to give an ester yield of 40% -60%. This article with acetic acid and a slight excess of alcohol in the presence of a catalyst refluxed