NDLI: Hydroformylation of 1-Octene Mediated by the Cobalt Complex [CoH(dchpf)(CO)$

Content Provider	Springer Nature Link
Author	Kluwer, Alexander M. Krafft, Michael J. Hartenbach, Ingo Bruin, Bas Kaim, Wolfgang
Copyright Year	2016
Abstract	Hydroformylation of 1-octene with the heterodinuclear (Fe, Co) complex [CoH(dchpf)(CO)$_{2}$] (1) was investigated (dchpf = 1,1′-bis(dicyclohexylphosphino)ferrocene). In agreement with this cobalt complex possessing a preformed hydride as well as carbonyl ligands, the pre-activated catalyst does not require any induction process or activation treatment to become reactive in hydroformylation. The catalyst activity and (chemo-)selectivity proved to be strongly dependent on the applied reaction conditions. Higher syngas pressures suppress alkene isomerization and favor the hydroformylation reaction. The overall regio-selectivity remains very similar within the investigated reaction space, with the C1-selectivity varying between 48 and 69 %. An increase of the reaction temperature at 40 bars results in a progressive decrease of the C1-selectivity and an increase in the C2- and C3-selectivity due to a higher isomerization activity at elevated temperatures. Furthermore, at high temperatures (170 °C) and low syngas pressures (10–20 bar) the main oxygenated products are the alcohols, resulting from reduction of the aldehydes. However, when using a combination of higher syngas pressures and intermediate temperatures, the reaction could be optimized towards the formation of aldehydes. At 140 °C and 40 bars syngas pressure quite selective hydroformylation of 1-octene could be achieved, yielding 57 % aldehydes and only 1.3 % over-reduction to the corresponding alcohol.
Starting Page	1787
Ending Page	1792
Page Count	6
File Format	PDF
ISSN	10225528
Journal	Topics in Catalysis
Volume Number	59
Issue Number	19-20
e-ISSN	15729028
Language	English
Publisher	Springer US
Publisher Date	2016-09-12
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydroformylation cobalt 1,1′-Bis(dicyclohexylphosphino)ferrocene Reaction progress analysis X-ray diffraction Catalysis Physical Chemistry Pharmacy Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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Hydroformylation of 1-Octene Mediated by the Cobalt Complex [CoH(dchpf)(CO)$_{2}$]

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