PROCESS FOR ONE-POT SYNTHESIS OF 1,1-DIPHENYL-1-(3-SUBSTITUTED-CYCLOPENTADIENYL)-1-(2,7-DI-T-BUTYL-FLUOREN-9-YL)METHANE TYPE LIGANDS

摘要

The present invention is directed to a method of making a ligand which can be used to form an ansa-metallocene. Further, the present invention is directed to a method of making the ansa-metallocene. In both methods the process steps employed to form the ligand are conducted in the presence of tetrahydrofuran, a substituted tetrahydrofuran, tetrahydropyran, a substituted tetrahydropyran or ethylene glycol dimethyl ether.