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Enhanced Productivity of a Supported Olefin Trimerization Catalyst

Sattler, Aaron and Aluthge, Dinesh C. and Winkler, Jay R. and Labinger, Jay A. and Bercaw, John E. (2016) Enhanced Productivity of a Supported Olefin Trimerization Catalyst. ACS Catalysis, 6 (1). pp. 19-22. ISSN 2155-5435. doi:10.1021/acscatal.5b02604.

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Treatment of dry silica with methylaluminoxane (MAO) followed by (FI)TiCl_3 (FI = (N-(5-methyl-3-(1-adamantyl)salicylidene)-2′-(2″-methoxyphenyl)anilinato) gives a heterogeneous supported ethylene trimerization catalyst, s(FI)Ti, which exhibits productivity more than an order of magnitude higher than its homogeneous analogues. This increase in productivity is attributed to a decreased rate of catalyst decomposition, a process that is proposed to occur via comproportionation to an inactive TiIII species; immobilization retards this process. In addition, s(FI)Ti catalyzes trimerization of α-olefins with high selectivity. Based on regioisomer distributions, catalysis by s(FI)Ti involves the same active species as the previously reported homogeneous systems (FI)TiR_2Me/B(C_6F_5)_3 (R = Me, CH_2SiMe_3, CH_2CMe_3).

Item Type:Article
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Winkler, Jay R.0000-0002-4453-9716
Labinger, Jay A.0000-0002-1942-9232
Additional Information:© 2015 American Chemical Society. Received: November 18, 2015; Publication Date (Web): November 23, 2015. We thank Harry B. Gray for helpful discussions. This work was funded by BP through the XC2 program.
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Official Citation:Enhanced Productivity of a Supported Olefin Trimerization Catalyst Aaron Sattler, Dinesh C. Aluthge, Jay R. Winkler, Jay A. Labinger, and John E. Bercaw ACS Catalysis 2016, 6, pp 19–22 DOI: 10.1021/acscatal.5b02604
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62466
Deposited By: Tony Diaz
Deposited On:03 Dec 2015 03:48
Last Modified:10 Nov 2021 23:02

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