The Synthesis of (η5-cyclopentadienyl)Titanium(IV) Alkoxides by Alcoholysis of the Ti-π-Ligand Bond in Permethyl η3:η4-Allyldiene-(η5-cyclopentadienyl)Titanium(II)
2003
Abstract
The η3:η4-allyldiene-(η5-cyclopentadienyl)titanium(II) complex [Ti(η5-C5Me5) {.eta3:η4-C5Me3(CH2)2}] (I) reacts with three molar equivalents of substituted propargylic alcohols FcC=CCMe2(OH) (2a) and PhC=CCH2OH (2b) at elevated temperature to give (η5-pentamethylcyclopentadienyl)titanium(IV) alkoxides [Ti(η5-C5Me5)(FcC=CCMe2-kO)3] (3a) and [Ti(η5-C5Me5)(PhC=CCH2O-kO)3] (3b), respectively. The crystal structure of 3a has been determined by single-crystal X-ray diffraction.