2-indanone with 2-lithio-5-methylfuran, followed by hydrolysis, dehydration, deprotonation with n-butyllithium, and transmetalation, gave bis[2-(5-methyl-2-furyl)indenyl]zirconium dichloride (6a). The dynamic 600 MHz 1H NMR spectroscopic analysis in the temperature range between 253 and 128 K revealed the presence of two metallocene conformational isomers in a 60:40 ratio. It is likely that this observed
Hydrolysis of 2-(5‘-methyl-2‘-furyl)indene (2a) followed by Paal−Knorr pyrrole synthesis of the resulting 1,4-diketone 8 with methylamine gave (5‘-methyl-2‘-N-methylpyrrolyl)indene (9), which was deprotonated and transmetalated to yield the substituted bis(2-pyrrolylindenyl)ZrCl2 (11), -HfCl2 (12), and -ZrMe2 (13) complexes. Treatment of the [2-(5‘-methyl-2‘-furyl)indenyl]- and [2-(5‘-methyl-2‘-t