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

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HAL Id: cea-02341704

https://hal-cea.archives-ouvertes.fr/cea-02341704

Submitted on 31 Oct 2019

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C0_2 and formic acid, a winning couple in reduction

chemistry

Thibault Cantat

To cite this version:

Thibault Cantat. C0_2 and formic acid, a winning couple in reduction chemistry. 253rd ACS meeting, Apr 2017, San Francisco, United States. �cea-02341704�

(2)

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INOR: Division of Inorganic Chemistry

102 -

C02

and formic acid, a winning couple in reduction

chemistry

View Session Detail

Thibault Cantat, thibault.cantat@cea.fr

DRF IIRAMIS 1 NIMBE 1 LCMCE, CEA, Gif Sur Yvette, France

Abstract: ~

Because it is abundant, inexpensive, low-toxic and renewable, CO2 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 CO2 and efficient catalysts are still to be needed to promote the reduction of C02 to reduced products, such as methanol.

We have recently shown that formic acid (HCOOH), obtained from the 2-electron reduction of C02, can serve as an efficient C-H bond shuttle and reductant in the reduction of CO2 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 C02, exemplifying the role of formoxysilane in transfer hydrosilylation chemistry for the first time. cal. ..P 2H'+2.r H-! cf' Eloellorer1lJcllon b-tt p-SiR·3 H--;;C, + cO2 Transfer hydrosily/arioli H R + H-{ + R·3SiCI t

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Utilization of formic acid as a C-H bond shuttle in disproportionation and transfer hydrosilylation reactions

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