Efficient and selective external activator-free cobalt catalyst for hydroboration of terminal alkynes enabled by BiPyPhos

Zheng Li; Jiangui Zhao; Weichao Xue; Juan Tang; Shun Li; Yicen Ge; Jiaqi Xu; Xueli Zheng; Ruixiang Li; Hua Chen; Haiyan Fu

doi:10.1039/D4OB00435C

Efficient and selective external activator-free cobalt catalyst for hydroboration of terminal alkynes enabled by BiPyPhos†

Zheng Li,‡^a Jiangui Zhao,‡^a Weichao Xue,^a Juan Tang,^a Shun Li,^a Yicen Ge,

^b Jiaqi Xu,

^a Xueli Zheng,

^a Ruixiang Li,

^a Hua Chen*^a and Haiyan Fu

*^a

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* Corresponding authors

^a Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
E-mail: scufhy@scu.edu.cn

^b College of Materials, Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China

Abstract

Herein, a robust catalyst system, composed of a bipyridine-based diphosphine ligand (BiPyPhos) and a cobalt precursor Co(acac)₂, is successfully developed and applied in the hydroboration of terminal alkynes, exclusively affording various versatile β-E-vinylboronates in high yields at room temperature.

Organic & Biomolecular Chemistry

Efficient and selective external activator-free cobalt catalyst for hydroboration of terminal alkynes enabled by BiPyPhos†

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Efficient and selective external activator-free cobalt catalyst for hydroboration of terminal alkynes enabled by BiPyPhos

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