Process for the preparation of metallocene complexes

Details Process for the preparation of metallocene complexes Process for the preparation of metallocene complexes

C - Chemistry, Metallurgy

07

F

260/316, 260/361

C07F 15/02 (2006.01)

Patent

CA 1263864

Process for the preparation of metallocene complexes Abstract of the Disclosure The invention relates to a process for the preparation of .pi.-arene- iron complexes of the general formula I [R1(R2FeII)a]? (LQm)-b (I) wherein a is 1 or 2, b ia an integer from 1 to 3, m i8 an integar corresponding to tha valency of L+b, L is a divalent to heptavalent metal or non-metal, Q is a halogsn atom, R1 is a .pi.-arens 9 an 0- or S-heteroarens or a pyrrole or an indole and R2 is a cyclopentadienyl anion or an indenyl anion. The .pi.-arene-iron complexes of formula I are obtained by ligand exchange at elevated temperatures from .pi.-arens-iron complexes of formula II [R3(R2FeII)a]? (LQm)? (II) wherein R3 is a condenset .pi.-arene which differs from R1. The .pi.-arene-iron complexes of formula I are suitable as photoinitiators for curable compositions containing cationlcally polymerisable organic materials.

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