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Transformation et utilisation du CO2: Que peut apporter la chimie ?

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Abstract

While greenhouse gases emissions are reaching alarming levels, fossil fuels still represent 80% of the world energy portfolio and 95% of our chemical commodities rely on non-renewable resources, namely hydrocarbons. In this context, utilizing CO2 as a C1 building block to produce platform chemicals as an alternative to petrochemistry has a double advantage of reusing CO2 while sparing fossil resources and avoiding CO2 emissions from their use. We have developed a strategy relying on the simultaneous use of a functionalizing reagent and a reductant that can be independently adjusted to perform the reductive functionalization of CO2 . The so-called diagonal approach will be discussed and exemplified with novel catalytic processes to convert CO2 to formamides, N-heterocycles, methylamines and methanol, using hydroboranes, hydrosilanes or formic acid as reductants. Extension of this methodology to SO2 enables the facile conversion of this gaz to sulfones, under metal-free conditions.
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Dates and versions

cea-02340788 , version 1 (31-10-2019)

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  • HAL Id : cea-02340788 , version 1

Cite

Thibault Cantat. Transformation et utilisation du CO2: Que peut apporter la chimie ?. PhD-Day Université de Brest, Dec 2018, Brest, France. ⟨cea-02340788⟩
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