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Durham University

Department of Chemistry

Publication details for Dr Philip W. Dyer

Messinis, Antonis M., Wright, William R.H., Hanton, Martin J. & Dyer, Philip W. (2020). Additives boosting the performance of tungsten imido-mediated ethylene dimerization systems for industrial application. Chemical Communications 56(50): 6886-6889.

Author(s) from Durham


While activation of tungsten bis(imido) complexes [WCl2(NAr)2(dme)] with EtAlCl2 affords active, and moderately selective ethylene dimerization catalysts, addition of Et3N or Oct4NCl leads to a doubling in productivity and activity, along with increased selectivity (e.g. >93% C4, >99% 1-C4). The performance of the resulting tungsten-based catalyst package is competitive with that of Axens’ commercialised Ti-based AlphaButol process and exemplifies the wide potential of similar additives in selective oligomerization.