Reactivity of early-transition-metal fulvene complexes. Transformation of a 2,3,4,5-tetramethylfulvene ligand into a bidentate dialkoxide with four asymmetric carbon atoms. Molecular structure of Ti[(OCHPh)2C5Me4(CH2)]Cl2

Article abstract of DOI:10.1021/om00051a069

Cp*FvTiCl (1; Cp* = η⁵-C₅H₅, Fv = η⁶-C₅Me₄CH₂) reacts with benzaldehyde, yielding Cp*Ti[(OCHPh)₂C₅Me₄(CH₂)]Cl (2) as the result of insertion in two Ti-C bonds at the 2- and 4-positions of the fulvene ligand in 1. Complex 2 reacts with HCl to give Cp*TiCl₃ (3) and the corresponding dialcohol and with TiCl₄ to give 3 and Ti[(OCHPh)₂C₅Me₄(CH₂)]Cl₂ (5). X-ray diffraction analysis of 5 shows it to be a dialkoxide-dichloride monomeric titanium complex with a tetrahedral arrangement of the ligands around the metal center. Crystal data for C₂₄H₂₆Cl₂O₂Ti: monoclinic, P2₁/n, a = 10.602 (5) A?, b = 14.157 (4) A?, c = 15.274 (5) A?, β = 103.76 (3)°, V = 2227 (1) A?³, Z = 4, R = 0.037.