Catalytic C-element bond cleavage and functional group transfer by metal NHC complexes

Lead Research Organisation: University of Edinburgh
Department Name: Sch of Chemistry

Abstract

Aim is to develop stoichiometric and catalytic activation, cleavage, and functionalisation of small organic molecules with a wide range of metal complexes and enantioselective organocatalysis.4 Bifunctional NHCs will be used to catalytically activate small polar organic molecules to cleave polar C-E bonds, and to facilitate catalytic enantioselective sulfonation and phosphorylation to prepare selectively O-S and O-P bonds.

Planned Impact

Catalysis is an inherently transformative field and the single most powerful method to reduce cost, energy demand and ensure sustainable fine and commodity chemical manufacture. On a grander scale, we will advance the UK economy, security and health through the development and understanding of catalysis. Through an intensive training programme we will ensure optimal use and recovery of our critical resources, exploit new long-term sustainable resources and feedstocks and will make chemical manufacture fit for future generations. Above all we will develop technologies offering a step-change in resource management and utilization. Specific impacts include:
Industry: The UK is an emerging leader in chemical sustainability. Critical Resource Catalysis is thus inherent to the growth of a technology-driven UK economy. In 2007, the growing chemical industry supported 6 million jobs and 21% of the UK GDP. World-class academic researchers, a broadly educated PhD cohort, inherent industrial collaboration and a holistic training environment will deliver unique individuals and scientific outputs for the chemical industry and beyond. Over 95% of our PhD students have continued their scientific efforts, sharing expertise in postdoctoral and industry positions: we produce exceptionally valued workers. The enhanced training provision provided by this CDT ensures even greater demand. Our training is intrinsically linked to industry and private sector parties, delivering core scientific knowledge and translational skills. With expertise in delivering critical innovations to industry, CRITICAT will become the hub for business and industry collaboration, consultation and discovery in the UK and beyond.
Policymakers: Global governments are recognising how important resources are to quality of life. The UK is committed to policies that demand the development of new technologies to facilitate a sustainable lifestyle, including the decarbonisation of energy supplies and the recycling of products, in particular those which contain a critical resource. With a cohort versed in the scientific and sociological arguments surrounding these issues further equipped to tackle future scientific challenges we will supports and strengthens the policies set out by the UK government and will serve as a champion for clear policy direction in the future.
Public: Educating not only our cohort but the general public about the importance of Critical Resource Catalysis is essential. We will engage with beneficiaries, from general audiences to UK HEIs, on our finite resources, their economic impacts and the societal benefits of a sustainable chemical industry. Public science demonstrations, focusing on the chemistry and engineering of critical resources, their uses in today's leading technologies, and the exploitation of the catalytic chemical sciences in a sustainable lifestyle will be led by the cohort to provide the public with a balanced and reasoned view of our contributions. With extensive expertise in public engagement, our team of educators and leaders will drive engagement activities forward and train our cohorts to develop as broad-skilled champions of chemistry and catalysis.
Dynamic researchers: This CDT will deliver at least 80 newly qualified PhD scientists and engineers who are trained in catalysis, the key driver behind sustainable chemical technologies. The students will undertake an exceptionally broad training regime enhanced well beyond a traditional PhD programme. Combined with state-of-the-art research projects, the collaborative interactions intrinsic throughout the CDT will yield great foundational and transferable skills for both researchers and institutions. They will learn business, managerial and communication skills from bespoke training, collaborative science and industry placements. Long-term impact will be ensured through our cohorts' entry into the global workforce and our universities commitment to improved collaboration and pedagogy.

Publications

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Description A series of novel rare earth metal - carbene complexes have been developed, which have shown unprecedented activity towards the ring opening polymerisation of the bio-renewable monomer lactide.
Cerium, yttrium and lanthanum have been investigated as the rare earth metal.
This project has involved collaborations with academic partners in Oxford University which has allowed for multiple fields of expertise to combine together to advance the research further than would have been possible in the absence of such collaboration.
Exploitation Route This work may be taken on by an industrial polymerisation company due to the less toxic nature of the catalysts employed vs the current industrial standard in the field. The exceptionally high rates for the polymerisation acheived by our system and the ability to access exceptionally high molecular weight cyclic polymer may allow for the development of a unique end polymer thats properties are as of yet under exlplored.
Sectors Chemicals,Manufacturing, including Industrial Biotechology

 
Description Polymerisation Placement 
Organisation University of Oxford
Department Department of Chemistry
Country United Kingdom 
Sector Academic/University 
PI Contribution We have provided the novel catalysts to be tested towards the polymerisation of bio-renewable monomers
Collaborator Contribution The team at Oxford have provided the purified bio-renewable monomers to be tested aswell as the analytical tools and expertise to gauge how efficient our novel catalyst are
Impact The collaboration has resulted in the preparation of a manuscript highlighting the novel work and unprecedented activity of the new catalysts. The collaboration combines the expertise of air sensitive rare earth metal catalysis with polymerisation chemistry.
Start Year 2019