Technology Platforms

Olefin Metathesis

Based on olefin metathesis, NexTene™ materials illustrate the potential benefits of DEMETA’s chemistry for the industry and the environment. Metathesis with DEMETA offers a very wide range of applications and performance capabilities: developing high-performance polymers, synthesizing complex molecules, creating value by capitalizing on agro-resources and developing innovative synthesis pathways.

 

Polymerization by Ring-Opening Metathesis (ROMP)

DEMETA’s metathesis catalysts are used to produce next-generation polymers such as NexTeneTM, obtained by ring-opening metathesis polymerization (ROMP). Depending on the monomeric substrates used, these polymers have specific properties. For example, while poly-dicyclopentadiene (p-DCPD) is a thermosetting material with a unique combination of properties such as an excellent balance between stiffness and impact resistance, as well as low density, all combined with exceptional chemical resistance, the cyclo-olefin polymers (COP) or copolymers of cyclic olefins (COC), which can also be synthesized by metathesis, are polymers whose features include very high transparency and good mechanical properties.

The ruthenium-based catalysts marketed by DEMETA are robust enough to produce these polymers in line with most if not all industrial processes (RIM, RTM, casting, infusion, pultrusion, etc.). They also support the addition of fillers or reinforcements to access high-performance composite materials.

 

Fine Chemical Synthesis

Olefin metathesis, which was recognized with the 2005 Nobel Prize for Dr. Robert Grubbs, Dr. Richard Schrock and Dr. Yves Chauvin, is based on exchanges of fragments of alkenes (olefins) through the cleavage and regeneration of carbon-carbon double bonds. It enables complex molecules to be synthesized in just a few steps, with the advantage of very low levels of hazardous waste and by-products.

The next-generation ruthenium-based catalysts marketed by DEMETA are characterized either by their very high activity, limiting the quantity of catalyst to be used (therefore the total cost) or by providing best-in-class selectivity, enabling complex molecule synthesis without isomerization.

With its ruthenium catalysts, DEMETA is opening up new possibilities in various fields, from polymers (e.g. ring-opening metathesis polymerization) to flavors & fragrances (e.g. ring-closing metathesis), oleochemistry (e.g. cross-metathesis, self-metathesis), pheromones (e.g. cross-metathesis) and pharmaceutical intermediates (e.g. ring-closing metathesis).

If you would like to test DEMETA’s catalysts on your substrates, please contact us !

Plateforme Technologique Usine

Oxidation of Alkenes

Oxidation reactions are part of life. Every second, millions of glucose molecules are oxidized in our cells to produce the energy we need to live. Similarly, the chemicals industry uses a large number of oxidation reactions to create the products we use each day. However, the conventional oxidation technologies used in industrial environments can be hazardous due to the large amount of energy released and the reagents used, which are often toxic and polluting. Thanks to its GreenCARE platform, DEMETA is redefining industrial oxidation processes to combine productivity and environmental sobriety with protection of users and consumers.

 

Oxidative cleavage of alkenes

DEMETA has developed unique expertise serving the oxidative cleavage reactions of alkenes. Its catalysts and processes, respecting the principles of green chemistry, enable alkenes, particularly from natural origins, to be transformed into high value-added aldehydes, ketones or carboxylic acids. DEMETA’s oxidative clipping technology replaces hazardous and polluting industrial methods, such as ozonolysis and cobalt salts, to deliver equivalent or improved performance, at a competitive cost.

 

Selective oxidation of alkenes

One of the main challenges with oxidation reaction is selectivity. When a molecule has several active sites, it is often very difficult to selectively oxidize a specific single site. DEMETA meets this challenge through its innovative catalysts, which provide very high selectivity. Combined with mild and eco-compatible oxidizing conditions, these molecular tools can replace traditional processes involving several complex, polluting and expensive stages with quick and efficient transformation. DEMETA’s selective oxidation catalysts simplify access to very high value-added compounds and provide access to new, unique molecules, aimed specifically at the cosmetics and fragrances markets.

If you would like to test DEMETA’s catalysts on your substrates, please contact us !

Laboratory technician picture