Preparation of monocyclopentadienyl metal complexes by nucleophi

Details Preparation of monocyclopentadienyl metal complexes by nucleophi Preparation of monocyclopentadienyl metal complexes by nucleophi

1995-06-06

1997-08-19

Wu, David W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 9, 556 11, 556 12, 556 19, 556 20, 556 28, 556 53, 556 54, 556 56, 502152, 502155, 526160, 526943, C07F 708

Patent

active

056590547

ABSTRACT:
Bridged monocyclopentadienyl derivatives of a Group 4 metal are prepared by contacting a corresponding bis(cyclopentadienyl) metal complex with an alkali metal derivative or alkaline earth metal derivative of a hydrocarbyl ligand R, which is optionally substituted with one or more amino, phosphino, ether, thioether, or silyl groups. The bis(cyclopentadienyl) Group 4 metal complexes can be prepared by contacting a compound corresponding to one of the formulas (Cp).sub.3 MQ.sub.n X.sub.t, (Cp).sub.2 MQ.sub.n X.sub.t+1, or CpMQ.sub.n X.sub.t+2 and a dianionic salt compound corresponding to the formula: (L.sup.+x).sub.y (Cp*-Z-Y).sup.-2 or ((LX').sup.+x).sub.y (Cp*-Z-Y).sup.-2. An addition polymerization catalyst comprising a bis(cyclopentadienyl) Group 4 metal complex and an activating cocatalyst, and an addition polymerization process using such a catalyst.

REFERENCES:
patent: 5026798 (1991-06-01), Canich
Zeitschrift fur Naturforschung, vol. 44b, pp. 1593-1598 1989.
Journal of Organometallic Chemistry, vol. 231, 1982, pp. C43-C48.
Chemical Abstracts, vol. 121, No. 9, 29 Aug. 1994, Colombus, Ohio, US; abstract No. 109063r.
J. Organometal. Chem., 110, pp. 321-326 (1976).
Organometallics, 12, pp. 1936-1945 (1993).
Organometallics, 10, pp. 2665-2671 (1991).

Affiliated with

Also associated with

Rating

Preparation of monocyclopentadienyl metal complexes by nucleophi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of monocyclopentadienyl metal complexes by nucleophi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of monocyclopentadienyl metal complexes by nucleophi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1105920