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Controlling the Lewis Acidity and Polymerizing Effectively Prevent Frustrated Lewis Pairs from Deactivation in the Hydrogenation of Terminal Alkynes
Organic Letters ( IF 4.9 ) Pub Date : 2021-04-20 , DOI: 10.1021/acs.orglett.1c01073
Qiang Liu 1 , Liu Yang 1 , Chenfei Yao 1 , Jiao Geng 1 , Youting Wu 1 , Xingbang Hu 1
Affiliation  

Two strategies were reported to prevent the deactivation of Frustrated Lewis pairs (FLPs) in the hydrogenation of terminal alkynes: reducing the Lewis acidity and polymerizing the Lewis acid. A polymeric Lewis acid (P-BPh3) with high stability was designed and synthesized. Excellent conversion (up to 99%) and selectivity can be achieved in the hydrogenation of terminal alkynes catalyzed by P-BPh3. This catalytic system works quite well for different substrates. In addition, the P-BPh3 can be easily recycled.

中文翻译:

控制路易斯酸度并进行聚合可有效防止沮丧的路易斯对在末端炔烃加氢中失活

报道了两种防止末端炔烃氢化中失活路易斯对(FLP)失活的策略:降低路易斯酸度和聚合路易斯酸。设计并合成了高稳定性的聚合路易斯酸(P-BPh 3)。在P-BPh 3催化的末端炔烃的加氢中,可以实现出色的转化率(高达99%)和选择性。该催化体系对于不同的底物效果很好。另外,P-BPh 3可以容易地回收。
更新日期:2021-05-07
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