Synthesis and reactivity of di(silylamido)cyclopentadienyl titanium and zirconium complexes

A short account of our recent contributions to the synthesis and reactivity of doubly silylamido-bridged cyclopentadienyl titanium and zirconium chelates is presented with particular emphasis on the insertion reactions of isocyanides into their M-N and M-C bonds and the efficiency of their alkyl-free cationic species as ethene polymerization catalysts and their deactivation pathways.