Xantphos Doped POPs‐PPh3 as Heterogeneous Ligand for Cobalt‐Catalyzed Highly Regio‐ and Stereoselective Hydrosilylation of Alkynes,Chemistry - An Asian Journal

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Xantphos Doped POPs‐PPh3 as Heterogeneous Ligand for Cobalt‐Catalyzed Highly Regio‐ and Stereoselective Hydrosilylation of Alkynes
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-11-28 , DOI: 10.1002/asia.201801241
Ren-Hao Li ₁ , Guo-Liang Zhang ₁ , Jia-Xing Dong ₁ , Ding-Chang Li ₁ , Ying Yang ₁ , Ying-Ming Pan ₂ , Hai-Tao Tang ₂ , Li Chen ₁ , Zhuang-Ping Zhan ₁

Affiliation

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 merits of Xantphos with the stability advantage derived from the high concentration of PPh₃, the Co(acac)₂/POL‐Xantphos@10PPh₃ can be recycled multiple times without loss of activity and selectivity. This heterogeneous catalyst is expected to find promising applications in industrial synthesis.

中文翻译：

Xantphos掺杂的POPs-PPh3作为异质配体用于钴催化炔烃的高度区域和立体选择性氢化硅烷化

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。

更新日期：2018-11-28

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