Two amine bis(phenolate) titanium dibenzyl complexes were synthesized in one-pot reactions starting from the ligand precursors and titanium tetra(isopropoxide). The catalyst derived from a ligand having an extra donor on a side arm leads to living polymerization of 1-hexene at room temperature, whereas the one derived from a ligand lacking it, leads to low molecular weight poly(1-hexene) with PDI values of around 2.0. (C) 2000 Elsevier Science S.A.
Bibliographical noteFunding Information:
This research was supported in part by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities. E.Y.T. thanks the Buchmann Foundation for a predoctoral fellowship. We thank Sima Alfi from BIU for technical assistance.
- Living polymerization
- Phenolate ligands
- Titanium complexes