Olefin Metathesis for biomass transformation
Keywords: Olefin metathesis, Ruthenium, Oleochemistry, Continuous Flow
The production of bio-based building blocks from renewable raw materials has become one of the major challenges of the 21st century due to the inescapable rarefaction of fossil resources. To address this concern, olefin metathesis represents an efficient catalytic tool to convert olefins from biomass into molecules of interest, while guaranteeing a very low carbon footprint. In this context, we developed various eco-efficient and highly selective Ruthenium-based catalytic processes (including pilot scale) enabling to transform non-refined fatty esters, wood wastes and terpenes into valuable molecules such as pheromones, fragrances, monomers for materials or precursors of plasticizers and lubricants. Continuous flow processes are also being studied to ensure a more eco-efficient and safer production.
Levulinic acid valorization
Keywords: Hydrogenation, Hydrosilylation, γ-valerolactone, pyrrolidone, iridium, iron
Levulinic acid (LA), which can be easily generated by acidic hydrolysis of carbohydrates, is one of the most promising biomass feedstocks for the synthesis of useful intermediates and fine chemicals. It has been identified as one of the 12 Top Value Added Chemicals from Biomass by the US Department of Energy in 2004. We have developed new catalysts and catalytic processes for the reduction of levulinic acid into biosourced compounds with multiple properties and interests.