Abstract
Small change, big difference: The introduction of an additional CH 2 group into the bridge of ligands with two P/N units leads to a different selectivity of the corresponding chromium-based catalysts. Whereas 1 produces an ethylene trimerization system, 2 provides an unprecedented ethylene tetramerization system that produces 1-octene with high purity and little or no polymer side products (see scheme; DMAO=Me 3Al-depleted methylaluminoxane). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Shaikh, Y., Albahily, K., Sutcliffe, M., Fomitcheva, V., Gambarotta, S., Korobkov, I., & Duchateau, R. (2012). A highly selective ethylene tetramerization catalyst. Angewandte Chemie - International Edition, 51(6), 1366–1369. https://doi.org/10.1002/anie.201106517
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