Reaction of ketones with the organotitanium oxide [{TiCp*(µ-O)}₃(µ₃-CMe)] via the hydride–vinylidene [{TiCp*(µ-O)}₃(µ-C[double bond, length half m-dash]CH₂)(H)] intermediate‡

Abstract

Thermal and/or photochemical treatment of [{TiCp*(µ-O)}₃(µ₃-CMe)] 1 (Cp* [triple bond, length half m-dash] η⁵-C₅Me₅) with organic ketones affords the new oxo derivatives [{TiCp*(µ-O)}₃(µ-C[double bond, length half m-dash]CH₂)(OCHRR′)] (R = R′ = Me 2, Ph 3; R = Ph, R′ = Me 4, Et 5); these reactions take place by insertion of the ketones CO group into the Ti–H bond of the in situ formed [{TiCp*(µ-O)}₃(µ-CCH₂)(H)] intermediate.

References

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