Preparation of chitosan/cellulose composite copper catalyst for green synthesis in the construction of C–Si bonds in aqueous phase
作者:Yaoyao Zhang、Biao Han、Zelang Zhang、Xue Zhao、Weishuang Li、Bojie Li、Lei Zhu
DOI:10.1039/d3gc01097j
日期:——
quinone compounds, and pharmaceutical molecules. Remarkably, this protocol provides a direct and efficient pathway to achieve an important class of β-silyl carbonyl compounds, and the desired products were obtained in good to excellent yields. Moreover, the catalyst could be recovered easily and work effectively in six recycles. The advantages of this newly developed process include operational simplicity
在这项工作中,一种新型绿色壳聚糖/纤维素复合铜凝胶微珠(CC@Cu) 是通过交联法制备的,可以作为一种高效的非均相催化剂,用于在温和无碱条件下水相中 α,β-不饱和受体的硅烷化。已经探索了广泛的底物范围,包括 α,β-不饱和羰基化合物、MBH 醇、醌化合物和药物分子。值得注意的是,该协议提供了一种直接有效的途径来获得一类重要的 β-甲硅烷基羰基化合物,并且以良好的收率获得了所需的产品。此外,催化剂可以很容易地回收并在六次循环中有效地工作。这种新开发的工艺的优点包括操作简单、良好的官能团耐受性、避免使用碱、可扩展性、随时可用以及催化剂易于回收。