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Please login to access the full content or check if you have access via Variation 1: Reactions of Alkynes, Dialkynes, or Carbonyl Compounds with Alkyne- or ­Alkenetitanium Complexes

DOI: 10.1055/sos-SD-002-00576

Mikami, K.; Matsumoto, Y.; Shiono, T.Science of Synthesis, (20032545.

[TiCp2(H2C=CH2)] complexes 196 react with alkynes to give titanacyclopentenes 200 (Scheme 99). Titaniumcyclopropene complexes 201 react with but-2-yne to give the bicyclic titanacycles 202 (Scheme 99).[‌327‌] Intermolecular coupling of alkenes and alkynes has, however, mostly been achieved by reaction between alkenes and the appropriate alkynetitanium complexes. Reactions between alkynes and alkynetitanium complexes (e.g., 203) result in titanacyclopentadienes (e.g., 171) (Scheme 99).

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