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Article Dans Une Revue Chem Année : 2022

Selective hydroboration of terminal alkynes catalyzed by heterometallic clusters with uranium metal triple bonds

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Due to their fascinating structures and heterometallic synergistic effects in catalysis, heterometallic clusters with metal-metal (M-M) bonds have attracted the interest of chemists for decades. However, understanding of the chemistry of M-M bonds that involve f-block elements, such as uranium, is significantly less developed compared with that of the d-block transition metals, and catalysis by heterometallic clusters with U-M bonds has not been realized to date. Here, we report a set of heterometallic clusters that feature U M (M = Fe, Co) triple bonds. The cluster with two U Co triple bonds exhibits excellent catalytic activity for the hydroboration of alkynes under mild conditions, producing alpha-vinylboronates with good yields and regioselectivity. These heterometallic clusters represent the rare structurally authenticated example of multiple bonding between f-block elements and transition metals. Theoretical studies reveal high bond orders (up to 2.93) and a significant degree of covalency in these U M triple bonds.
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hal-03714650 , version 1 (22-07-2024)

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Penglong Wang, Iskander Douair, Yue Zhao, Rile Ge, Junhu Wang, et al.. Selective hydroboration of terminal alkynes catalyzed by heterometallic clusters with uranium metal triple bonds. Chem, 2022, 8 (5), pp.1361-1375. ⟨10.1016/j.chempr.2022.03.005⟩. ⟨hal-03714650⟩
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