Check out the latest short communication about the oxovanadium complexes and their use in oxidation catalysts.

Salonen, P., Peuronen, A., and Lehtonen, A., “Oxidovanadium(V) amine bisphenolates as epoxidation, sulfoxidation and catechol oxidation catalysts”, Inorg. Chem. Commun. 86 (2017) 165-167.
Read online: http://dx.doi.org/10.1016/j.inoche.2017.10.017