Development of Nhc Organocatalysts for Extreme Photoreduction
il y a 1 semaine
**Development of NHC organocatalysts for extreme photoreduction (ANR CASPI project) Internship Offer (Master’s level - Organic Chemistry / Catalysis)**: - Réf **ABG-133201** - Stage master 2 / Ingénieur - Durée 6 mois - Salaire net mensuel 660 - 25/08/2025 - Institut de Chimie Radicalaire - Lieu de travail- Marseille 05 Provence-Alpes-Côte d'Azur France - Champs scientifiques- Chimie - Mots clés- synthèse organique, chimie organique, catalyse- 25/12/2025 **Établissement recruteur**: **Site web**: **Description**: **_Development of NHC organocatalysts for extreme photoreduction _** **_(ANR CASPI project)_** - Internship Offer (Master’s level - Organic Chemistry / Catalysis)_ **Laboratoire** : Institut de Chimie Radicalaire - UMR 7273 **Equipe** : pharmaco-chimie radicalaire (PCR) **Adresse**: Faculté de Pharmacie - Campus Timone 5ème étage, 27 boulevard Jean Moulin 13385 Marseille **Scientific context** - Photoredox catalysis provides elegant solutions in organic synthesis for the reductive activation of inert substrates under mild conditions.[1] However, traditional photocatalysts remain limited by the reducing power of their excited states (> -2 V _vs. _SCE). - The ANR CASPI project aims to implement the ConPET strategy (Consecutive Photo-induced Electron Transfer) to generate highly reducing anionic photocatalysts within N-heterocyclic carbene (NHC) chemistry. NHC organocatalysts have recently been applied to diverse reductive radical transformations.[2] Our preliminary results show that visible-light irradiation can expand their reactivity to challenging, previously inaccessible substrates. **Internship objectives** - The goal is to explore the potential of new free redox-active NHCs in extreme photoreductive catalysis. - The intern will: - Optimize the conditions for generating and activating these NHCs, - Conduct experiments under inert atmosphere (glovebox) and under photoactivation (UV-visible lamps). **Perspectives** - This internship is the first step of a broader research project. A PhD fellowship is secured starting in September 2026.- [2] a) Martin, J. Broggi _et al._ Critical assessment of the reducing ability of Breslow-type derivatives and implications for carbene-catalyzed radical reactions,_ Angew. Chem. Int. Ed. _**2021**_, 60, _p26783. b) D. Martin, J. Broggi _et al._ A simple NHC for the catalytic up-conversion of aldehydes into stoichiometric Super Electron Donors _Chem. Sci. _**2024**_, 15_, p14699. **Profil**: - Master’s student in organic chemistry or catalysis. - Basic knowledge of organic synthesis. - Interest in catalysis, radical chemistry, and photochemistry. **Duration**: 5-6 months **Gratification**: approximately €660 per month **Prise de fonction**: - 15/01/2026
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il y a 2 semaines
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