%0 Conference Paper %F Oral %T Transformation et utilisation du CO2: Que peut apporter la chimie ? %+ Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF) (LCMCE) %A Cantat, Thibault %F Invité %< avec comité de lecture %B PhD-Day Université de Brest %C Brest, France %8 2018-12-20 %D 2018 %Z Chemical Sciences/Material chemistryConference papers %X 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. %G English %2 https://cea.hal.science/cea-02340788/document %2 https://cea.hal.science/cea-02340788/file/Cantat_Brest_181220.pdf %L cea-02340788 %U https://cea.hal.science/cea-02340788 %~ CEA %~ CNRS %~ PUBNIMBE %~ INC-CNRS %~ IRAMIS-NIMBE %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ CEA-UPSAY-SACLAY %~ TEST-HALCNRS %~ GS-ENGINEERING %~ IRAMIS %~ GS-CHIMIE %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ TEST2-HALCNRS