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

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Taccardi N, Fekete M, Berger M, Stanjek V, Schulz P, Wasserscheid P
Zeitschrift: Applied Catalysis A-General
Verlag: Elsevier
Jahr der Veröffentlichung: 2011
Band: 399
Heftnummer: 1-2
Seitenbereich: 69--74
ISSN: 0926-860X


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.



FAU-Autoren / FAU-Herausgeber

Berger, Markus
Lehrstuhl für Chemische Reaktionstechnik
Schulz, Peter Dr.
Lehrstuhl für Chemische Reaktionstechnik
Taccardi, Nicola Dr.
Lehrstuhl für Chemische Reaktionstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Autor(en) der externen Einrichtung(en)
Wacker Chemie AG


Zitierweisen

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://dx.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.

BibTeX: 

Zuletzt aktualisiert 2018-11-08 um 02:29