Zirconocene Functional Group Chemistry: Photochemical [4+4] Cycloaddition of Isoprenyl Sidechains to the Bent Metallocene Framework

Abstract

The 4-isoprenyl-and 1-isoprenylcyclopentadienides 6a and 6b were prepared by means of a fulvene route involving a subsequent deprotonation reaction using potassium hexamethyldisilylamide. Transmetallation to zirconium or hafnium gave the respective bis(4-isoprenyl-Cp)MCl 2 and bis(1-