DS10 - Défi des autres savoirs

Weak Interactions in Stabilized Silylium Ions – WISSI

Submission summary

The activation of thermally stable small molecules is one of the central tasks in catalysis and modern synthetic chemistry, which is closely related to some important issues for our society such as hydrogen economy or carbon dioxide conversion into organic materials. Such processes require new catalysts. Therefore, the access to new highly active species is the key to gain in efficiency and to find novel activation modes, which potentially allow to develop new catalytic reactions.
In this context, we considered silyl cations, which present extraordinarily strong Lewis acid character, as catalysts having a high potential. However, the application of silylium ions in synthesis and catalysis is still quite limited due to their inherent exceptional reactivity. Moreover, chiral induction with these species has yet to be investigated.
We thus propose in this research program, the development of new ligand systems which allow to finely control the stability and reactivity of silyl cations. These systems having the potential for chirality, another important objective of the project will be the investigation of such chiral silylium ion complexes in an effort to combine their inherent high reactivity with enantioselective processes. The use of chiral silylium ions as efficient Lewis acid catalysts in organic transformations would have a significant impact on enantioselective organic synthesis.

Project coordination

Yannick LANDAIS (Institut des Sciences Moléculaires - Université de Bordeaux)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


CvO Institute of chemistry, Carl von Ossietzky University Oldenburg
CNRS/LHFA Centre National de la Recherche Scientifique/Laboratoire Hétérochimie Fondamentale et Appliquée
ISM Institut des Sciences Moléculaires - Université de Bordeaux

Help of the ANR 476,496 euros
Beginning and duration of the scientific project: September 2016 - 48 Months

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