Abstract
The Ruppert–Prakash reagent (Me
3
SiCF
3
) is used to introduce difluorocarbene (CF
2
) and tetrafluoroethylene (TFE) ligands to cobalt(
i
) metal centres, whereby the TFE ligand is generated
via
[2+1] cycloaddition between [Co]CF
2
and CF
2
.