Chlorodefluorination Induced by Gallium‐Based Lewis Acids
The reaction of [Ga(C<sub>2</sub>F<sub>5</sub>)<sub>3</sub>(FSiMe<sub>3</sub>)] with chlorotrimethylsilane leads to the selective substitution of the α-fluorine atoms by chlorine atoms and thus to the formation of [Ga(CCl<sub>2</sub>CF<sub>3</sub>)<sub>3</sub>(FSiMe<sub>3</sub>)]. The corresponding chlorogallate ion, [Ga(CCl<sub>2</sub>CF<sub>3</sub>)<sub>3</sub>Cl]<sup>-</sup>, could be isolated and structurally characterized as its tetraphenylphosphonium salt. The catalytic potential of [Ga(CCl<sub>2</sub>CF<sub>3</sub>)<sub>3</sub>(FSiMe<sub>3</sub>)] was demonstrated via the chlorodefluorination of Me<sub>3</sub>SiCF<sub>3</sub>, 2,2-difluoropropane and [PPh<sub>4</sub>][Ga(C<sub>2</sub>F<sub>5</sub>)<sub>4</sub>].
Authors
- Beate Neumann (ORCID: https://orcid.org/0000-0002-6899-502X)
- Berthold Hoge (ORCID: https://orcid.org/0000-0001-9610-8478)
- Hans‐Georg Stammler (ORCID: https://orcid.org/0000-0002-0918-7057)
- Katharina Tölke
Institutions
- Bielefeld University (DE)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2024-09-19
- DOI
- https://doi.org/10.1002/chem.202403226
- Citations
- 3
- Primary Topic
- Inorganic Fluorides and Related Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.48