Back to results
US 5,789,634 AGranted
Coupling reactions of 2-substituted, 7-haloindenes with aryl substituents to produce metallocene catalyst intermediates
AssigneeBoulder Scientific Company
InventorsJeffrey M. Sullivan, Hamlin H. Barnes
Life of this patent
Estimating the term…
Abstract
Novel 2-substituted 7-haloindenes and methods for synthesizing such indenes are described. The 2-substituted 7-haloindenes may be coupled with any aryl group to produce a metallocene catalyst intermediate.
Claims4
A compound having the formula:
- ##STR14## in which X is a halogen and R.sub.1 is an alkyl group having one to ten carbon atoms.
A compound having the formula:
- ##STR15##
A compound having the formula:
- ##STR16##
Dependencies are inferred from the claim text.