| abstract |
An organic reductant, in particular an organo silicon reductant suitable for activating supported catalysts of the type MO n E m , wherein E is S and/or Se, in particular MO n , wherein M is W, Mo or Re, is described as well as its use in metathesis reactions. The reduced catalysts are able to metathesize olefins at low temperatures and are therefore also suitable for metathesis of functionalized olefins. |