dc.contributor.author |
Aucamp, Danielle
|
|
dc.contributor.author |
Witteler, Tim
|
|
dc.contributor.author |
Dielmann, Fabian
|
|
dc.contributor.author |
Siangwata, Shepherd
|
|
dc.contributor.author |
Liles, David C.
|
|
dc.contributor.author |
Smith, Gregory S.
|
|
dc.contributor.author |
Bezuidenhout, Daniela Ina
|
|
dc.date.accessioned |
2017-04-03T12:20:43Z |
|
dc.date.issued |
2017-03 |
|
dc.description.abstract |
A series of rhodium(I)–1,2,3-triazol-5-ylidene (trz) complexes are described, containing
either a novel triarylated trz ligand A′ (N1, N3-arylated, C4-ferrocenyl) {complexes 1,
[Rh(A′)Cl(cod)]; 4, [Rh(A′)Cl(CO)2]}, or N3-alkylated triazolylidenes with a C4-ferrocenyl {2,
[Rh(B′)Cl(cod)]; 5, [Rh(B′)Cl(CO)2]} or C4-phenyl substituent {3, [Rh(C′)Cl(cod)]; 6,
[Rh(C′)Cl(CO)2]}. The free mesoionic carbene (MIC) A′ is structurally characterized and its
electronic properties evaluated by employing the complex [Pd(Br)2(iPr2-bimy)(A′)] (7) in an
NMR spectroscopic analysis method. The redox activity of A′ is exploited, and the chemically
oxidized precursor Aox and complex 4ox are isolated. The mesoionic carbene complexes 1–
3, as well as in situ oxidized 1ox, are used as homogeneous catalysts for the
hydroformylation of 1-octene for the first time, and the influence of chemical oxidation of
the catalyst on the activity and chemo- and regioselectivity of the catalyst precursor 1 is
evaluated. |
en_ZA |
dc.description.department |
Chemistry |
en_ZA |
dc.description.embargo |
2018-03-31 |
|
dc.description.librarian |
hb2017 |
en_ZA |
dc.description.sponsorship |
F.D. and T.W. gratefully acknowledge financial support from the Fonds der Chemischen
Industrie (FCI). G.S.S. gratefully acknowledges financial support from the University of Cape
Town and the NRF-DST Centre of Excellence in Catalysis (C*Change). D.I.B. and D.A.
gratefully acknowledge the National Research Foundation, South Africa (NRF 87890, 97202
and 104205), and Sasol Technology R&D Pty. Ltd., South Africa for financial support. |
en_ZA |
dc.description.uri |
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-0682c |
en_ZA |
dc.identifier.citation |
Aucamp, D, Witteler, T, Dielmann, F, Siangwata, S, Liles, DC, Smith, GS & Bezuidenhout, DI 2017, 'A triarylated 1,2,3-triazol-5-ylidene ligand with a redox-active ferrocenyl substituent for rhodium(I)-catalyzed hydroformylation of 1-octene', European Journal of Inorganic Chemistry, vol. 2017, no. 9, pp. 1227-1236. |
en_ZA |
dc.identifier.issn |
1434-1948 (print) |
|
dc.identifier.issn |
1099-0682 (online) |
|
dc.identifier.other |
10.1002/ejic.201700164 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/59632 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
Wiley |
en_ZA |
dc.rights |
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the pre-peer reviewed version of the following article : A triarylated 1,2,3-triazol-5-ylidene ligand with a redox-active ferrocenyl substituent for rhodium(I)-catalyzed hydroformylation of 1-octene, European Journal of Inorganic Chemistry, vol. 2017, no. 9, pp. 1227-1236, 2016. doi : 10.1002/ejic.201700164. The definite version is available at : http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-0682c. |
en_ZA |
dc.subject |
Influence of chemical oxidation |
en_ZA |
dc.subject |
NMR spectroscopic analysis method |
en_ZA |
dc.subject |
Chemical oxidation |
en_ZA |
dc.subject |
Mesoionic carbene (MIC) |
en_ZA |
dc.title |
A triarylated 1,2,3-triazol-5-ylidene ligand with a redox-active ferrocenyl substituent for rhodium(I)-catalyzed hydroformylation of 1-octene |
en_ZA |
dc.type |
Postprint Article |
en_ZA |