Chemistry Letters, Vol.36, No.8, 1030-1031, 2007
Olefin polymerization catalyst derived by activation of a neutral monoalkyl titanium complex with an aminopyrrole ligand using triisobutylaluminum and trityl borate
A neutral monocyclopentadienyl titanium monobenzyl complex 3a bearing an aminopyrrole ligand can be activated by treating with Al((BU)-B-1)(3) and [Ph3C][B(C6F5)(4)] to became a catalyst for olefin polymerization via the methine proton abstraction of Al((BU)-B-1)(3) by [Ph3C][B(C6F5)(4)].