The precise synthesis of chiral poly(silyl ether)s remains a challenge, in contrast to the well-studied preparation of poly(silyl ether)s. Herein, an unprecedented approach for the synthesis of optically active poly(silyl ether)s with main-chain chirality has been developed via CuH-catalyzed hydrosilylation polymerization of diketones and silanes. The polymerization features low catalyst loading, mild condition, and broad substrate scope, including a wide range of aromatic diketones and heteroaromatic diketones with excellent yields and enantioselectivities (up to 98% yield and 99% ee). Thermal analysis indicated chiral poly(silyl ether)s exhibit good thermal properties. These enantiomerically enriched poly(silyl ether)s with good thermal stability have a promising application in chiral separation.

中文翻译：

---

CuH催化的二酮与硅烷的不对称氢化硅烷化聚合合成手性聚（甲硅烷基醚）

与经过充分研究的聚（甲硅烷基醚）的制备相比，手性聚（甲硅烷基醚）的精确合成仍然是一个挑战。在此，通过CuH催化的二酮和硅烷的氢化硅烷化聚合，开发了一种前所未有的合成具有主链手性的光学活性聚（甲硅烷基醚）的方法。该聚合反应具有催化剂负载量低、条件温和、底物范围广等特点，包括范围广泛的芳香族二酮和杂芳香族二酮，具有优异的收率和对映选择性（收率高达 98%，ee 为 99%）。热分析表明手性聚（甲硅烷基醚）表现出良好的热性能。这些具有良好热稳定性的对映体富集的聚（甲硅烷基醚）在手性分离中具有广阔的应用前景。