Objectif The preparation of complex molecular architectures employing multi-component reactions where the number of bond-forming events is maximised is a central goal of the discipline of Organic Synthesis. The contemporary, pressing need for sustainable chemical reactions has raised the demand for novel reaction families that explore the concept of redox-neutrality and proceed with the generation of minimal waste. In this proposal, I present a unified and conceptually novel approach to atom-economical C-C bond formation in challenging contexts without the need for transition metal promoters or reagents. To this end, I propose the innovative harvesting of the potential of vinyl cation intermediates as platforms for the deployment of nucleophilic entities capable of orchestrating rearrangement reactions. The combination of such high-energy intermediates, generated under mild conditions, with the power of carefully designed rearrangements leads to an array of useful new transformations. Furthermore, the very high atom-economy and simplicity of these reactions renders them not only sustainable and environmentally friendly but also highly appealing for large-scale applications. Additional approaches to enantioselective synthesis further enhance the methods proposed. The paradigm proposed herein for the exploitation of vinyl cations will also open up new vistas in the centuries-old aldol reaction and in amination chemistry. This showcases the vast potential of these simple principles of chemical reactivity. The myriad of new reactions and new product families made possible by VINCAT will decisively enrich the toolbox of the synthetic practitioner. Champ scientifique natural scienceschemical sciences Mots‑clés rearrangements redox-neutral C-C coupling vinyl cations Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Thème(s) ERC-CoG-2015 - ERC Consolidator Grant Appel à propositions ERC-2015-CoG Voir d’autres projets de cet appel Régime de financement ERC-COG - Consolidator Grant Institution d’accueil UNIVERSITAT WIEN Contribution nette de l'UE € 1 940 025,00 Adresse UNIVERSITATSRING 1 1010 Wien Autriche Voir sur la carte Région Ostösterreich Wien Wien Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 940 025,00 Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution nette de l'UE Tout développer Tout réduire UNIVERSITAT WIEN Autriche Contribution nette de l'UE € 1 940 025,00 Adresse UNIVERSITATSRING 1 1010 Wien Voir sur la carte Région Ostösterreich Wien Wien Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 940 025,00