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Ligand Bridged and Bis-ligand Coordinated Titanium Complexes: Synthesis, Structure and Relevance to Phenylacetylene Hydroanilination Catalysis

✍ Scribed by Xiao-Yu Han; Ya-Hong Li; Hua Wei; Yong Zhang

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 136 KB
Volume: 25
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.200790248

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✦ Synopsis

Two ligand bridged binuclear titanium complexes Ti 2 (bppda) 3 (NMe 2 ) 2 •3THF (1) and Ti 2 (bppda) 3 (NEt 2 ) 2 •3THF

(2) and one bis-ligand coordinated mononuclear complex Ti(bppda) 2 (3) (ligand: H 2 bppda＝N,N'-Bis(2-pyrrylmethylidene)-1,2-phenylenediamine) were synthesized by adjusting the ratio of the starting materials and the reaction speed. The complexes were fully characterized with NMR, elemental analysis and X-ray crystal diffraction. The catalytic activity of the complex 1 to phenylacetylene hydroanilination reaction was also investigated.

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