多糖这种多羟基高分子化合物,由于分子内和分子间氢键的影响,以及很难在溶液中反应,在多糖改性或结构研究中很难获得全取代或选择性取代的产物。 作者运用液-固间的相转移催化技术,成功地制备了6-O-苄基N-乙酰氨基葡聚糖和3,6-O-二-苄基N-乙酰氨基葡聚糖。 Polysaccharide, a kind of polyhydroxyl polymer, is difficult to obtain fully substituted or selectively substituted products in polysaccharide modification or structural study due to the influence of intramolecular and intermolecular hydrogen bonds and the difficulty of reaction in solution. The authors successfully prepared 6-O-benzyl N-acetylglucosamine and 3,6-O-di-benzyl N-acetylglucosamine using the liquid-solid phase transfer catalysis.