Arnaud Osi is a PhD. student, he obtained is bachelor degree in the University of Namur, Belgium, in 2017 and is Master degree in 2019 under supervision of Prof. Guillaume Berionni. He obtained the FRIA grand and started to work on his thesis in November 2019 in organic chemistry under the supervision of Prof. Guillaume Berionni. The first part of his thesis is dedicated to the synthesis of the boratriptycene and derivatives in order to develop strong Lewis acids while the second part aims for C-F activation using strong Lewis acids.



Taming the Lewis Superacidity of Non-Planar Boranes: C-H Bond Activation and Non-Classical Binding Modes at Boron

A. Osi, D. Mahaut, N. Tumanov, L. Fusaro, J. Wouters, B. Champagne, A. Chardon, G. Berionni, Angew. Chem. Int. Ed. 2022, 61, e202112342.


Sulfur-Based Chiral Iodoarenes: An Underexplored Class of Chiral Hypervalent Iodine Reagents

M. Elsherbini, A. Osi, H. Alharbi, F. Karam, T. Wirth, Synthesis DOI: 10.1055/a-1508-9593


Triptycene Boronates, Boranes, and Boron AteComplexes: Toward Sterically Hindered Triarylboranes and Trifluoroborates

M. Gama, X. Antognini Silva, T-H. Doan, A. Osi, A. Chardon, N. Tumanov, J. Wouters, G. Berionni, Eur. J. Org. Chem. 2021, 1440–1445


Methylene Bridging Effect on the Structures, Lewis Acidities and Optical Properties of Semi Planar Triarylboranes

T.-H. Doan, A. Chardon, A. Osi, D. Mahaut, N. Tumanov, J. Wouters, B. Champagne, G. Berionni, Chem. Eur. J. 202127, 1736-1743.


Non-planar Boron Lewis Acids Taking the Next Step: Development of Tunable Lewis Acids, Lewis Superacids and Bifunctional Catalysts (Account)

A. Chardon, A. Osi, D. Mahaut, A. Ben Saida, G. Berionni, Synlett202031, 1639-1648.


 Controlled Generation of 9-Boratriptycene by Lewis Adduct Dissociation: Accessing a Unique Non-Planar Triarylborane

A. Chardon, A. Osi, D. Mahaut, T.-H. Doan, N. Tumanov, J. Wouters, L. Fusaro, B. Champagne, G Berionni, Angew. Chem. Int. Ed202059, 12402-12406.


Pushing the Lewis Acidity Boundaries of Boron Compounds with NonPlanar Triarylboranes Derived from Triptycenes

A. Ben Saida, A. Chardon, A. Osi, N. Tumanov, J. Wouters, A. I. Adjieufack, B. Champagne, G. Berionni, Angew. Chem. Int. Ed. 2019, 58, 16889-1893.


Opening up new research lines in Lewis acid/base catalysis

Berionni, G.; Hu, L.; Ben Saida, A.; Chardon, A.; Gama, M.; Osi, A.; Mahaut, D.; Antognini Silva,  X. Chimie Nouvelle, 2018, 128, 13.