Regioselective 1‐Hexene Oligomerization Using Cationic Bis(phenolato) Group 4 Metal Catalysts: Switch from 1,2‐ to 2,1‐Insertion

A cat of two tales: Cationic Group 4 metal catalysts that contain a linked bis(phenolato) ligand efficiently catalyze the oligomerization of 1-hexene. Whereas oligo(1-hexene)s arising from 2,1-insertion of 1-hexene are observed for the titanium complexes, those prepared using zirconium and hafnium complexes are formed by 1,2-insertion. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z703218_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.