| Autor: |
Ijpeij EG; DSM Research B.V., P.O. Box 18, 6160MD Geleen, The Netherlands., Coussens B, Zuideveld MA, van Doremaele GH, Mountford P, Lutz M, Spek AL |
| Jazyk: |
angličtina |
| Zdroj: |
Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2010 May 21; Vol. 46 (19), pp. 3339-41. Date of Electronic Publication: 2010 Apr 07. |
| DOI: |
10.1039/b925781k |
| Abstrakt: |
Reaction of Cp*Ti{NC(Ar(F(2)))N(i)Pr(2)}Me(2) (1, Ar(F(2)) = 2,6-C(6)H(3)F(2)) with [Ph(3)C][B(C(6)F(5))(4)] gave the base-free structurally authenticated dication [Cp*(2)Ti(2){NC(Ar(F(2)))N(i)Pr(2)}(2)(mu-Me)(2)][B(C(6)F(5))(4)](2) (3-[BF(20)](2)) containing two doubly alpha-agostic bridging methyl groups. 3-[BF(20)](2) is a highly effective ethylene-propylene polymerization catalyst at 90 degrees C, and its performance is identical to the catalyst generated in situ from 1 and [Ph(3)C][B(C(6)F(5))(4)]. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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