Highly Selective Dimerization and Trimerization of Isobutene to Linearly Linked Products by Using Nickel Catalysts

A Behr, N Rentmeister, T Seidensticker…

Index: Behr, Arno; Rentmeister, Nils; Seidensticker, Thomas; Vosberg, Jonas; Peitz, Stephan; Maschmeyer, Dietrich Chemistry - An Asian Journal, 2014 , vol. 9, # 2 p. 596 - 601

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Citation Number: 7

Abstract

Abstract The unique linear linkage of isobutene to generate highly valuable C 8 precursors for plasticizers is feasible by using special nickel catalysts.(4-Cyclooctene-1-yl)(1, 1, 1, 5, 5, 5-hexafluoro-2, 4-acetylacetonato) nickel and aluminum-alkyl-activated nickel acetylacetonates produce isobutene dimers with high selectivities of up to 95%. Moreover, selectivity for the head-to-head products (2, 5-dimethylhexenes) is remarkably high at up ...