Issue 24, 2004

Synthesis of the new, weakly coordinating anions [RB(C6F5)3] (R = CH2Me, CHMe2, CH2CMe3); utilization of [HNMe2Ph][Me3CCH2B(C6F5)3] to activate zirconocenecatalysts for propylene polymerization

Abstract

The compound [HNMe2Ph][NpB(C6F5)3] (Np = (CH3)3CCH2) reacts with dimethylzirconocenes to give active propylene polymerization catalysts which are significantly more active and give higher molecular weight polypropylene than do the catalysts obtained using B(C6F5)3; the [NpB(C6F5)3] anion is for steric reasons more weakly coordinating than is [MeB(C6F5)3].

Graphical abstract: Synthesis of the new, weakly coordinating anions [RB(C6F5)3]− (R = CH2Me, CHMe2, CH2CMe3); utilization of [HNMe2Ph][Me3CCH2B(C6F5)3] to activate zirconocene catalysts for propylene polymerization

Supplementary files

Article information

Article type
Communication
Submitted
19 Jul 2004
Accepted
26 Oct 2004
First published
11 Nov 2004

Dalton Trans., 2004, 4089-4091

Synthesis of the new, weakly coordinating anions [RB(C6F5)3] (R = CH2Me, CHMe2, CH2CMe3); utilization of [HNMe2Ph][Me3CCH2B(C6F5)3] to activate zirconocene catalysts for propylene polymerization

N. Bavarian and M. C. Baird, Dalton Trans., 2004, 4089 DOI: 10.1039/B410941D

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