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Catalysts 2016, 6(9), 147; doi:10.3390/catal6090147

Synthesis, Characterization, and Catalytic Hydrogenation Activity of New N-Acyl-Benzotriazole Rh(I) and Ru(III) Complexes in [bmim][BF4]

Chemistry Department, Faculty of Science, Anadolu University, Eskişehir 26470, Turkey
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Author to whom correspondence should be addressed.
Academic Editor: Xiao-Feng Wu
Received: 10 August 2016 / Revised: 6 September 2016 / Accepted: 14 September 2016 / Published: 20 September 2016
(This article belongs to the Special Issue Organometallic Catalysis for Organic Synthesis)
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Abstract

The hydrogenation activity of new N-acyl-benzotriazole Rh(I) and Ru(III) complexes in ionic liquid media is reported in this study. Both complexes were completely soluble in 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4], and they were able to catalyze the hydrogenation of styrene and 1-octene. While ethylbenzene conversion in styrene hydrogenation reached 84% when the Ru complex was used, 100% conversion was obtained with the Rh complex at 393 K in 6 h. Additionally, total conversion in 1-octene hydrogenation reached 100% with the Rh complex in [bmim][BF4] media. The hydrogenation of styrene and 1-octene in dimethyl sulfoxide (DMSO) and toluene was also studied to compare the solvent effect on catalytic system. The effect of some catalytic parameters such as temperature, H2 (g) pressure, and catalyst amount on the conversion was examined, and it was found that the conversion increased parallel to the increasing temperature and H2 pressure. The recyclability of catalysts was also investigated, and it was revealed that the Rh complex in particular maintained the activity for at least 10 cycles. View Full-Text
Keywords: N-acyl-benzotriazole; ionic liquid; hydrogenation; catalysis; rhodium; ruthenium N-acyl-benzotriazole; ionic liquid; hydrogenation; catalysis; rhodium; ruthenium
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ünver, H.; Yılmaz, F. Synthesis, Characterization, and Catalytic Hydrogenation Activity of New N-Acyl-Benzotriazole Rh(I) and Ru(III) Complexes in [bmim][BF4]. Catalysts 2016, 6, 147.

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