Catalysis letters

High productive ethylene trimerization catalyst based on CrCl3/SNS ligands

E Ahmadi, Z Mohamadnia, MN Haghighi

Index: Ahmadi, Ebrahim; Mohamadnia, Zahra; Haghighi, Mehdi Nekoomanesh Catalysis Letters, 2011 , vol. 141, # 8 p. 1191 - 1198

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Citation Number: 4

Abstract

Abstract Methylaluminoxane (MAO)-activated chromium (III) complexes of tridentate SNS ligands of the form (RSCH 2–CH 2) 2 NH (R= alkyl, aryl) have been prepared and tested for the trimerization of ethylene to 1-hexene. The effect of ethylene pressure, Al/Cr ratio and S donor substitution on 1-C6 selectivity and productivity has been examined. It is shown that when the substitution on S is pentyl group it will lead to the highest productivity, 174200 g ...