The combination of first-row transition compounds or nanoparticles in with silica-based supports offers a great possibility for catalyst design. In particular iron, cobalt and nickel-based materials, rise attention due to their availability, low cost interesting reactivity, enabling transformations that are not possible noble metals. Different support strategies exist where mesoporous interest ...

Tungsten oxo adamantylidenes (=Ad) are a new class of readily accessible alkylidenes, that opens the possibility to evaluate broader molecular and supported olefin metathesis catalysts. In this context, W(O)(=Ad)X2, with X=pyrrolide perfluoro-tert-butoxide, were grafted on partially dehydroxylated silica, generate corresponding silica-supported tungsten adamantylidenes. The high thermal stabili...