Synthesis of a titanium ethylene complex via C-H-activation and alternative access to CpTi(η-MeSiCSiMe).

The synthesis of the novel room temperature stable titanacyclopropane derivative Cp*Ti(η-CH)(η-CHAdH) (2) in a one-step-two-transformation protocol and first insights into its reactivity are presented, including the synthesis of the corresponding bis(trimethylsilyl)acetylene complex Cp*Ti(η-MeSiCSiMe)(η-CHAdH) (4). Given these results, a novel one-pot procedure toward CpTi(η-MeSiCSiMe) was subsequently developed.