Simple synthetic routes to ruthenium-indenylidene olefin metathesis catalysts

摘要

An efficient synthetic protocol involving reactions between the free carbene and [RuCl_2(PPh_3)_2(Ind)l followed by addition of pyridine leads to the isolation of olefin metathesis active [RuCl_2(LXPyXInd)] (L = SIMes and SIPr) complexes. This novel approach circumvents the use of costly tricyclohexylphosphine.