A ligand-free in situ-generated cobalt nanoparticle catalyst for (Z)-selective transfer semihydrogenation of alkynes

被引：0

作者：

Yang, Shunbin ^{[1
]}

Zhang, Dengju ^{[1
]}

Zuo, Weiguo ^{[2
]}

Wang, Guanqun ^{[1
]}

Wang, Chengtao ^{[1
]}

Guo, Jiyang ^{[2
]}

Fan, Duona ^{[1
]}

You, Song ^{[2
]}

Jia, Xian ^{[1
]}

机构：

[1] Shenyang Pharmaceut Univ, Sch Pharmaceut Engn, Shenyang 110016, Peoples R China

[2] Shenyang Pharmaceut Univ, Sch Life Sci & Biopharmaceut Sci, Shenyang 110016, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2023年 / 47卷 / 40期

基金：

中国国家自然科学基金;

关键词：

SPENT AMMONIA BORANE; TRANSFER HYDROGENATION; STEREOSELECTIVE SEMIHYDROGENATION; HYDROSILYLATION; ALKENES; ETHANOL;

D O I：

10.1039/d3nj01943h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein, we developed a simple and efficient approach for the (Z)-selective transfer semihydrogenation of alkynes based on in situ-generated cobalt nanoparticles (CoNPs) and ammonia-borane (NH3.BH3), in which aryl-aryl, aryl-alkyl and terminal alkynes were converted to their (Z)-alkenes in good to excellent yields (72-96%). The heterogeneous and magnetic properties of CoNPs make them easy to separate from the reaction system, and the recovered CoNPs could be reused six times without significant loss of catalytic activity. Moreover, our method also enabled us to prepare combretastatin A-4 (CA-4) at gram scale.

引用

页码：18634 / 18639

页数：6

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