In this work, a novel polymer namely poly(N,N'-dibromo-N-ethylnaphthyl-2,7-disulfonamide) (PBNS) is synthesized
and characterized by studying its IR, 1H NMR, 13C NMR and thermal gravimetric analysis (TGA). This polymer
is utilized as a highly efficient, heterogeneous and recyclable N-bromo reagent to catalyze acetylation of various compounds
such as alcohols, phenols, thiol and amine with acetic anhydride under solvent-free conditions, and also it worthily
catalyzes deacetylation of acetate esters in aqueous media.
在这项工作中,合成了一种新型高分子,即聚(N,N'-二
溴-N-乙基
萘-2,7-二磺酰胺) (PBNS),并通过研究其红外光谱(IR)、氢谱(1H NMR)、碳谱(13C NMR)以及热重分析(TGA)进行表征。该高分子作为一种高效的、非均相的可回收N-
溴试剂,用于催化多种化合物的
醋酸化反应,如醇、 phenol、
硫醇和胺与
醋酸酐在无溶剂条件下反应,同时它在
水相介质中也能有效催化
醋酸酯的脱醋基反应。