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C0$_2$ and formic acid, a winning couple in reduction chemistry

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Abstract

Because it is abundant, inexpensive, low-toxic and renewable, CO$_2$ is an attractive carbon feedstock and its conversion has motivated recent efforts both in the academia and in the industry. Nonetheless, major advances are still hampered by the kinetic inertness of CO$_2$ and efficient catalysts are still to be needed to promote the reduction of CO$_2$ to reduced products, such as methanol. We have recently shown that formic acid (HCOOH), obtained from the 2-electron reduction of CO$_2$, can serve as an efficient C-H bond shuttle and reductant in the reduction of CO$_2$ to methanol. Using ruthenium(ll) complexes, supported by a triphosphine ligand, formic acid can undergo a disproportionation reaction to methanol in high yields. In the presence of chlorosilanes, the same catalytic system is able to facilitate the reduction of aldehydes and CO$_2$, exemplifying the role of formoxysilane in transfer hydrosilylation chemistry for the first time.
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Dates and versions

cea-02341704 , version 1 (31-10-2019)

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  • HAL Id : cea-02341704 , version 1

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Thibault Cantat. C0$_2$ and formic acid, a winning couple in reduction chemistry. 253rd ACS meeting, Apr 2017, San Francisco, United States. ⟨cea-02341704⟩
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