Xantphos Doped POPs-PPh<sub>3</sub>
as Heterogeneous Ligand for Cobalt-Catalyzed Highly Regio- and Stereoselective Hydrosilylation of Alkynes
作者:Ren-Hao Li、Guo-Liang Zhang、Jia-Xing Dong、Ding-Chang Li、Ying Yang、Ying-Ming Pan、Hai-Tao Tang、Li Chen、Zhuang-Ping Zhan
DOI:10.1002/asia.201801241
日期:2019.1.4
A Co(acac)2/POL‐Xantphos@10PPh3‐catalyzed hydrosilylation of unsymmetrical internal alkynes with Ph2SiH2 has been developed for the synthesis of highly selective syn‐α‐vinylsilane products. Furthermore, terminal alkynes were also used and gave the products with excellent regioselectivity and a wide functional group tolerance. Because this porous organic polymer combines the selectivity and activity
已经开发出了用Co 2(PH 2 SiH 2)对不对称内部炔烃进行Co(acac)2 / POL-Xantphos @ 10PPh 3催化的氢化硅烷化反应,用于合成高度选择性的合成α-乙烯基硅烷产物。此外,还使用末端炔烃,使产物具有极好的区域选择性和宽泛的官能团耐受性。因为这种多孔有机聚合物将Xantphos的选择性和活性优点与高浓度PPh 3带来的稳定性优势相结合,所以Co(acac)2 / POL-Xantphos @ 10PPh 3可以多次回收而不会损失活性和选择性。该多相催化剂有望在工业合成中找到有前途的应用。