Ov. Ozerov et al., Reactivity of a well-characterized titananorbornadiene (eta(6)-arene) complex with ketones and aldehydes, ORGANOMETAL, 19(21), 2000, pp. 4187-4190
The reaction between the titananorbornadiene complex [(DMSC)Ti(eta (6)-1,2,
4-(Me3Si)(3)C6H3)] (2) and ketones or aldehydes proceeds by insertion of a
Ketone or aldehyde molecule into a Ti-C bond of 2, yielding 2,5-dioxatitana
cyclopentane or 2-oxatitanacycloheptene compounds. The intermediacy of a 2-
oxatitanacycloheptene species en route to arene loss from 2 and the formati
on of 2, 5-dioxatitanacyclopentane compounds are indicated.