A pyridine dialkoxide titanium dichloride complex. Synthesis and molecular structure of 2,6-bis(2,2-diphenyl-2-trimethylsilyloxyethyl)pyridine

Helmut Mack, Moris S. Eisen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Reaction of 2,6-dimethylpyridine with 2 equivalents of LiBun followed by addition of 2 equivalents of benzophenone and the consecutive reaction with 2 equivalents of SiMe3Cl afforded the doubly functionalised 2,6-bis(2,2-diphenyl-2-trimethylsilyloxyethyl)pyridine L. The structure of L has been determined by an X-ray diffraction study. Reaction of either a doubly lithiated intermediate or the corresponding silylated ligand L with TiCl4 afforded a pyridine dialkoxide titanium dichloride complex. A cationic α-olefin polymerization catalyst was generated from this complex with an excess of methylaluminoxane (MeAlO)n. A comparison of the catalytic activity with those of similar bis(alkoxide) complexes is presented.

Original languageEnglish
Pages (from-to)917-921
Number of pages5
JournalJournal of the Chemical Society. Dalton Transactions
Issue number6
DOIs
StatePublished - 21 Mar 1998
Externally publishedYes

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