Catalyst recycling in monophasic Pt-catalyzed hydrosilylation reactions using ionic liquids

Taccardi N, Fekete M, Berger M, Stanjek V, Schulz P, Wasserscheid P (2011)


Publication Type: Journal article

Publication year: 2011

Journal

Publisher: Elsevier

Book Volume: 399

Pages Range: 69--74

Volume: 399

Issue: 1-2

Journal Issue: 1-2

DOI: 10.1016/j.apcata.2011.03.041

Abstract

The technical relevant Pt-catalyzed hydrosilylation of allyl chloride with trichlorosilane was investigated in a monophasic reaction system containing an ionic liquid (IL) additive. ILs screening allowed us to identify the liquid 1-decyl-3-methylimidazolium bis(trifloromethanesulfonyl)amide ([DMIM][NTf2]) as the best additive for such process. This IL combined complete miscibility with reactants as long as chemical and thermal robustness. After the reaction, the hydrosilylation product (3-chloropropyl)trichlorosilane was distilled off and the residual IL/catalyst solution could be reused. In such a way, a final TON of 14,200 was achieved over 10 reaction/distillation cycles without any loss of catalytic activity. The ability of [DMIM][NTf2] to prevent catalyst decomposition was deeper investigated and it was found that even with a Pt loading as high as 9500~ppm, the IL acted as protective/stabilizing agent for the catalyst during the thermally stressing product distillation.

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APA:

Taccardi, N., Fekete, M., Berger, M., Stanjek, V., Schulz, P., & Wasserscheid, P. (2011). Catalyst recycling in monophasic Pt-catalyzed hydrosilylation reactions using ionic liquids. Applied Catalysis A-General, 399(1-2), 69--74. https://doi.org/10.1016/j.apcata.2011.03.041

MLA:

Taccardi, Nicola, et al. "Catalyst recycling in monophasic Pt-catalyzed hydrosilylation reactions using ionic liquids." Applied Catalysis A-General 399.1-2 (2011): 69--74.

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