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 employed to generate desired products in moderate to excellent yields with good functional group tolerance. This protocol provided a practical application of the chitosan supported heterogeneous copper catalyst towards a novel PO bond formation.

中文翻译：

---

壳聚糖上的可回收铜催化剂，可通过二苯基磷酰基叠氮化物与脂肪醇之间的脱氨基酯化反应轻松制备烷基/芳基混合磷酸盐

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。