Process for preparing metallocene complexes

Details Process for preparing metallocene complexes Process for preparing metallocene complexes

C - Chemistry, Metallurgy

07

F

260/383, 260/428

C07F 17/02 (2006.01)

Patent

CA 1307002

K -13926/+/B Process for preparing metellocene complexes Abstract of the Disclosure The invention provides an improved process for the preparation of compounds of formula Ia Image (Ia), wherein R1 is a .pi.-arene, R2' is an anion of a .pi.-arene, L is a divalent to heptavalent metal or non-metal, Q is a halo- gen atom, q is an integer from 1 to 3 and m is an integer corresponding to the valency of L+q, said process comprising reacting an uncharged .pi.-complex of the formula IIIa Image (IIIa) with a .pi.-arene R1 in the presence of Al and a Lewis-acid followed by treatment with an acid or a salt of an acid of the anion [LQm]q-, in which process the improvement consists essentially of using TiCl4 as a Lewis-acid.

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