Vinylidene olefin process

Details Vinylidene olefin process Vinylidene olefin process

1986-08-15

1987-04-14

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

502117, 585511, 585523, C07C 226

Patent

active

046580786

ABSTRACT:
This invention relates to a process for dimerizing an alpha olefin to a vinylidene olefin which comprises contacting said alpha olefin with a catalyst comprising (a) cyclo(pentadienyl)zirconium or hafnium metallocene and (b) an aluminoxane wherein the atom ratio of Al to Zr or Hf in the catalyst ranges from about 1 to about 100.

REFERENCES:
patent: 4377720 (1983-03-01), Langer
patent: 4404344 (1983-09-01), Sinn et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4542199 (1985-09-01), Kaminsky et al.

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