Recyclable copper catalyst on chitosan for facile preparation of alkyl/aryl mixed phosphates via deaminated esterification between diphenylphosphoryl azides and aliphatic alcohols
作者:Lin-Yu Jiao、Ze Zhang、Qian Hong、Zi-Hui Ning、Shanshan Liu、Ming Sun、Qingqing Hao、Long Xu、Zhuo Li、Xiao-Xun Ma
DOI:10.1016/j.mcat.2020.111120
日期:2020.10
An efficient methodology was established for the preparation of alkyl/aryl mixed phosphates under aerobic conditions promoted by a easily recoverable heterogeneous catalyst. This highly active copper catalyst was obtained by directly mixing of copper precursor with chitosan solution, followed by a simple work-up process. In this catalytic system, different phosphoryl azides and aliphatic alcohols were
建立了在好氧条件下由易于回收的非均相催化剂促进的烷基/芳基混合磷酸盐的制备方法。通过将铜前体与壳聚糖溶液直接混合,然后进行简单的后处理工艺,即可获得这种高活性铜催化剂。在该催化体系中,采用了不同的磷酰基叠氮化物和脂族醇,以中等至优异的收率和良好的官能团耐受性生成所需的产物。该协议提供了壳聚糖负载的多相铜催化剂在新型P O键形成中的实际应用。