Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Patent
1994-06-08
1995-05-30
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
556 53, 585317, 585360, 585375, C07F 1700, C07F 700, C07C 100
Patent
active
054203201
ABSTRACT:
In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand, the process comprises (1) reacting an alkali metal salt of a cyclopentadienyl-type compound and an aminofulvene compound to form a monoanion, (2) reacting the monoanion and a reducing agent to form a dianion, and (3) reacting the dianion and water to produce the cyclopentadienyl-type ligand. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the dianion of step (2) and a transition metal-containing compound to form the metallocene compound. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the ligand of step (3) and an alkali metal compound to form a dianion and then reacting the dianion with a transition metal-containing compound to form the metallocene compound.
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Alt Helmut G.
Palackal Syriac J.
Welch M. Bruce
Zenk Roland
Dees Jos,e G.
Michel Marianne H.
Nazario-Gonzalez Porfirio
Phillips Petroleum Company
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