Synthesis of sila-bridged titanocenes and desilylation reaction

Authors
Wang, BQ Xu, SS Zhou, XZ
Citation
Bq. Wang et al., Synthesis of sila-bridged titanocenes and desilylation reaction, CHEM J CH U, 20(1), 1999, pp. 50-53
Citations number
19
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
20
Issue
1
Year of publication
1999
Pages
50 - 53
Database
ISI
SICI code
0251-0790(199901)20:1<50:SOSTAD>2.0.ZU;2-F
Abstract
Reactions of lithiated sila-bridged ligands Li-2[E(C5H3SiMe3)(2)] With TiCl 4 . 2THF lead to the formation of complexes [E (C5H3SiMe3)(2)]TiCl2 [E = Me 2SiSiMe2(3), Me2SiOSiMe2 (5)]. The unsymmetrical ansa-titanocenes [E (C5H4) (C5H3SiMe3)]TiCl2 [E = Me2SiSiMe2 (4), Me2SiOSiMe2(6)] were also isolated simultaneously as desilylation products, Among them, disiloxane-bridged lig and is easier to occur the desilylation reaction. Complexes 3-6 were charac terized by H-1 NMR, mass spectra and elemental analyses.