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Event
Abstract Electron transfer-mediated functionalizations present new avenues for the construction of carbon-carbon and carbon-heteroatom bonds from readily available and abundant feedstocks. We have been developing new photocatalytic systems as versatile …
16:50 to 17:35
Event
Abstract Visible-light photoredox catalysis provides powerful opportunities for redox transformations under mild conditions;1 however, the development of efficient, low-cost, and metal-free photocatalysts remains a central challenge.1b In this talk, I …
15:45 to 16:30
David J. Procter
From Sulfonium Salts to Samarium Catalysis: New radical chemistry for synthesis
David J. Procter
From Sulfonium Salts to Samarium Catalysis: New radical chemistry for synthesis
Symposium
Event
Abstract Part I - Our approach to cross-coupling uses sulfoxides to activate substrates as sulfonium salts. In particular, sulfonium salts, generated from arenes, 1 and new sulfonium salts generated from alternative feedstocks, 2 can be exploited in …
15:00 to 15:45
Véronique Michelet
A Journey in Gold Catalysis Towards Diversity: from Heterocycles to Fragrances
Véronique Michelet
A Journey in Gold Catalysis Towards Diversity: from Heterocycles to Fragrances
Symposium
Event
Abstract Over the past 20 years, significant research has been directed toward the development of new methodologies for synthetic efficiency and atom economy processes in the presence of gold complexes. 1 We have been initially engaged in a wide project …
14:15 to 15:00
Event
Abstract Activation of small molecules by donor-acceptor systems is conceptually important as many catalytic processes rely on the synergistic action of electron-rich and -poor sites to cooperatively activate and cleave bonds. This pertains to both the …
11:45 to 12:30
Event
Abstract Polyoxometalates (POMs) form a versatile family of molecular oxide clusters of the early transition metals endowed with exceptional redox properties, which have driven applications in photo/electro-catalysis, photo/electro-chromic materials, …
11:00 to 11:45
Event
Abstract Activation of carbene precursors by planar, low-spin cobalt(II) complexes leads to formation of 'carbene radical' intermediates. 1 These are intrinsically reactive metal-bound carbon radicals (Figure 1), useful for catalytic synthesis of a …
09:50 to 10:35
Event
Abstract Electrochemical reduction of carbon dioxide can yield valuable chemicals, energy carriers, and renewable fuels that serve as storage forms of renewable energy. This transformation can be achieved using molecular catalysts immobilized on …
09:05 to 09:50
Event
Christopher Domínguez Michael is invited by the Collège de France assembly at the suggestion of Professor William Marx. The lecture will be in Spanish with subtitles. Abstract The exercise of literary criticism from Latin America, today more than ever, …
15:00 to 16:00
Series
Image generated with A.I. Presentation Topological concepts occupy a central place in Quantum Condensed Matter Physics, helping to understand the robustness of certain phases of quantum matter and providing a unifying language to describe them. This cycle …
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Avenir Commun Durable
Does Nature have an intrinsic value?
Avenir Commun Durable
Does Nature have an intrinsic value?
Special events
Event
Abstract We like to talk about "protecting nature", "preserving biodiversity", "ecosystem services". But behind these formulas lurks a very particular vision of the world: that of a human being separated from the living, who has sovereignty over what to …
18:30 to 20:00
Louis Jonker
Socio-Political Transformation and Biblical Interpretation: The Case of Post-Apartheid South Africa
Louis Jonker
Socio-Political Transformation and Biblical Interpretation: The Case of Post-Apartheid South Africa
Guest lecturer
Event
Abstract In the first lecture the issue of changing biblical interpretation in the South African context since the 1990s when Nelson Mandela was released and the ANC party unbanned, and since 1994 when the first democratic post-apartheid elections were …
16:00 to 17:00
Event
Abstract Genetic variation among individuals of the same species fuels evolutionary change and adaptation to a changing environment. Yet, the maintenance of large genetic variation for adaptive traits in natural populations is still discussed as a …
09:45 to 10:15
Series
Cours Peccot Since 1885, thanks to an endowment from the family of mathematician Claude-Antoine Peccot, the Collège de France has awarded prizes each year to young mathematicians under the age of 30 who have distinguished themselves in the field of …
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Event
Abstract Extensive evidence shows that landscape structure significantly influences farmland biodiversity and can alter the effectiveness of sustainable agricultural practices. In this talk, I will explore how not only the quantity but also the size and …
10:45 to 11:15
Nathalie Feiner
Understanding the Evolution of Natural Syndromes Through the Lens of Development
Nathalie Feiner
Understanding the Evolution of Natural Syndromes Through the Lens of Development
Symposium
Event
16:45 to 17:30
Event
Abstract Humans strove for generations to create a world without large predators. By doing so they changed the rule of the evolutionary game played for over 400 million years. Can this be without consequences on ecological networks and on the fabric of …
11:15 to 11:45
Event
Abstract Species distribution changes associated with human-mediated climate change have important consequences on ecosystems and human well-being. Despite mounting evidence, our knowledge of biodiversity redistribution is still incomplete with only 0.6% …
11:45 to 12:15
Event
16:00 to 16:45
Event
14:45 to 15:30