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Please login to access the full content or check if you have access via Method 4: Substitution Reaction of Dichlorobis(η5-cyclopentadienyl)titanium(IV) with an Alkanediyldilithium Reagent

DOI: 10.1055/sos-SD-002-00576

Mikami, K.; Matsumoto, Y.; Shiono, T.Science of Synthesis, (20032544.

Titanacyclopentane 170 is prepared by reaction between dichlorobis(η5-cyclopenta­dien­yl)titanium(IV) (78) and butane-1,4-diyldilithium in a 20% yield (Scheme 97).[‌319‌] Its isolation and purification can be accomplished by chromatography under argon (alumina, low temperature, hexanes). The analogous titanacyclohexane has also been synthesized by this method. Titanacyclopentane 170 and bis(η5-cyclopentadienyl)titanacyclohexane are much more stable than the similar acyclic titanium complex [Ti(Bu)2(Cp)2].[‌319‌]

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