Project description
Imidazolidine-4-thiones: variable, metal-free catalysts for organic reactions
In organic chemistry, the rate of certain reactions can be increased through the action of organocatalysts. In contrast to metal-based catalysts, organocatalysts consist only of carbon, hydrogen, nitrogen, sulphur and other non-metal elements. They have attracted great interest as less toxic and greener alternatives to metal-based catalysts. The EU-funded SImCat project aims to investigate reactions promoted by imidazolidine-4-thiones, an underexplored class of organocatalysts. Researchers will study the role of the catalyst in alkylation reactions of aldehydes, and its effect will be characterised by following the kinetics of the reactions. Results will enhance the understanding of the emergence of life on Earth and open new possibilities in the organic synthesis of biologically active molecules.
Objective
As elements in metal-based catalysis are becoming increasingly high risk, organocatalysts represent versatile, green, and robust catalysts as effective alternatives. Imidazolidine-4-thiones are 5-membered thioamide heterocycles with a secondary amine at ring position 1, which have structural similarity to imidazolidinones, successfully used as chiral organocatalysts. However, unlike imidazolidinones and proline-based catalysts, imidazolidinethiones are underexplored and underutilized as catalysts in organic reactions, their catalytic cycle is not proven, and the relative intermediates involved in the cycle have not been isolated to date. Earlier in 2020, imidazolidinethiones have been demonstrated by the Trapp group as suitable catalysts in the alkylation of aldehydes in prebiotic media, and they show promise as organocatalysts in modern organic reactions. In this project, I will investigate the reactivity of relevant intermediates in the organocatalytic cycle, that is, the enamines and iminium ions derived from the imidazolidinethiones and enolizable and non-enolizable aldehydes, respectively. The reactivity of imidazolidine-4-thione derived enamines and iminium ions will be quantified by kinetic measurements and results will embedded in the comprehensive Mayr reactivity scales. Experimental kinetic data will be acquired by applying photometric methods, which cover different timescales from conventional UV-vis spectroscopy to follow slow reactions via stopped-flow techniques to laser flash photolysis for reactions close to diffusion control, which proceed within nanoseconds. This fellowship will shed light on the unproven catalytic cycle and provide a quantitative basis for the future exploitation of this underutilized class of catalysts. Furthermore, I will develop skills in physical organic chemistry using quantitative structure-reactivity relationships and time resolved spectroscopy, while also refining soft skills such as leadership and teaching.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences organic chemistry aldehydes
- natural sciences chemical sciences organic chemistry organic reactions
- natural sciences chemical sciences catalysis
- natural sciences chemical sciences organic chemistry amines
- natural sciences physical sciences optics spectroscopy
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
80539 Planegg
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.