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Volume 190, 2016
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Immobilization of a rhodium catalyst using a diphosphine-functionalized ionic liquid in RTIL for the efficient and recyclable biphasic hydroformylation of 1-octene

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Abstract

A highly efficient and stable Rh–P catalytic system in the RTIL of [PEmim]BF4 was developed for the biphasic hydroformylation of 1-octene by using the diphosphine-functionalized ionic liquid (FIL) of 2. While 2-Rh(acac)(CO)2 was immobilized in [PEmim]BF4 (solvent), a typical biphasic catalysis was fulfilled with advantages of facile separation and recycling ability – 9 runs without any loss of activity. It was found that not only the acquired π-acceptor character of 2, but also the synergetic role of the piperidyl group in [PEmim]BF4 as an N-containing donor, cooperatively contributed to the efficient hydroformylation due to the facilitated formation and stability of the Rh-H active species (ν 2045 cm−1). This was supported by the in situ high-pressure FT-IR spectral analysis.

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Publication details

The article was received on 26 Nov 2015, accepted on 11 Jan 2016 and first published on 12 Jan 2016


Article type: Paper
DOI: 10.1039/C5FD00195A
Citation: Faraday Discuss., 2016,190, 219-230
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    Immobilization of a rhodium catalyst using a diphosphine-functionalized ionic liquid in RTIL for the efficient and recyclable biphasic hydroformylation of 1-octene

    Y. Li, H. Liu, P. Wang, D. Yang, X. Zhao and Y. Liu, Faraday Discuss., 2016, 190, 219
    DOI: 10.1039/C5FD00195A

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