• Publications
  • Influence
Relevance of Protons in Heterolytic Activation of H2O2 over Nb(V): Insights from Model Studies on Nb-Substituted Polyoxometalates
Nb-monosubstituted Lindqvist-type polyoxometalates (POM), (Bu4N)4[(NbW5O18)2O] (1) and (Bu4N)3[Nb(O)W5O18] (2), catalyze epoxidation of alkenes with hydrogen peroxide and mimic the catalyticExpand
Synthesis of coenzyme Q0 through divanadium-catalyzed oxidation of 3,4,5-trimethoxytoluene with hydrogen peroxide.
The industrially relevant oxidation of 3,4,5-trimethoxytoluene gives 2,3-dimethoxy-5-methyl-1,4-benzoquinone (ubiquinone 0) with 73% selectivity at 76% arene conversion, and the catalyst retains its structure under turnover conditions and can be easily recycled and reused without significant loss of activity and selectivity. Expand
Heterogeneous epoxidation of menadione with hydrogen peroxide over the zeolite imidazolate framework ZIF-8.
The zeolite imidazolate framework ZIF-8 exhibits superior catalytic performance in the epoxidation of the electron-deficient C[double bond, length as m-dash]C bond in menadione using aqueous hydrogenExpand
Why does Nb(V) show higher heterolytic pathway selectivity than Ti(IV) in epoxidation with H2O2? Answers from model studies on Nb- and Ti-substituted Lindqvist tungstates
Ti- and Nb-monosubstituted tungstates of the Lindqvist structure, (Bu4N)3[(CH3O)TiW5O18] (TiW5) and (Bu4N)2[(CH3O)NbW5O18] (NbW5), display catalytic reactivity analogous to that of heterogeneous Ti...