The bis-(2-dodecylsulfanyl-ethyl)-amine (SNS) ligand was prepared in good yield and high purity using inexpensive reagents and reacted with CrCl3(THF)3 at room temperature to give the corresponding SNS/CrCl3 catalyst in high yield. An ethylene trimerization reaction at 90 °C and 23 bar ethylene, using the SNS/CrCl3 complex activated by 700 equivalents of MAO, afforded 99.97% 1-C6. Only 0.10% PE was produced and the catalyst activity was 159283 g/g Cr/h.
An ethylene trimerization reaction at 90 °C and 23 bar ethylene, using the [bis-(2-dodecylsulfanyl-ethyl)-amine]CrCl3 complex activated by 700 equivalents of MAO, afforded 99.97% 1-C6.
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Mohamadnia, Z., Ahmadi, E., Haghighi, M.N. et al. Synthesis and Optimization of Ethylene Trimerization Using [Bis-(2-dodecylsulfanyl-ethyl)-amine]CrCl3 Catalyst. Catal Lett 141, 474–480 (2011). https://doi.org/10.1007/s10562-010-0492-z
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