Hydroformylation of 1-hexene using polymer-supported rhodium catalysts in supercritical carbon dioxide

Fujita, Shin-Ichiro; Akihara, Shuji; Fujisawa, Shinya; Arai, Masahiko

Hydroformylation of 1-hexene using polymer-supported rhodium catalysts in supercritical carbon dioxide

Fujita, Shin-Ichiro; Akihara, Shuji; Fujisawa, Shinya et al.

Journal of Molecular Catalysis A Chemical, 2007, 268(1-2), 244-250

Permalink : https://hdl.handle.net/2115/24256

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アクセス権	open access
URI	https://hdl.handle.net/2115/24256
タイトル	Hydroformylation of 1-hexene using polymer-supported rhodium catalysts in supercritical carbon dioxide
著者	Fujita, Shin-Ichiro ; Akihara, Shuji ; Fujisawa, Shinya ; Arai, Masahiko
e-Rad_Researcher 80156869 著者名 Fujita, Shin-Ichiro
著者名 Akihara, Shuji
著者名 Fujisawa, Shinya
e-Rad_Researcher 60125490 著者名 Arai, Masahiko
言語	英語
キーワード	Hexene hydroformylation
	Polystyrene
	Heterogeneous catalyst
	Catalyst recycling
	Supercritical carbon dioxide
発行日	2007-05-01
出版者	Elsevier B.V.
収録物名	Journal of Molecular Catalysis A Chemical
巻(号)	268(1-2)
ページ	244-250
抄録	Hydroformylation of 1-hexene was carried out in supercritical CO2 (scCO2) and in organic solvents (toluene and ethyl acetate) using polymer-supported rhodium catalysts, which were prepared from polystyrene bound triphenylphosphine (TPP) and dicarbonylacetylecetonato rhodium. Preparation variables such as TPP/Rh ratio, time of rhodium precursor fixation on the support and time of syngas pretreatment do not produce significant effects on the reaction. The product distribution slightly changes with CO2 pressure. The conversion increases appreciably as H2 pressure is raised in scCO2 but CO retards the reaction. The influence of H2 pressure in scCO2 is slightly different from that in toluene. Changes of the structure of rhodium complexes on the polymer during the catalyst preparation and the reaction were investigated by diffuse reflectance FT-IR. It should be noted that the catalyst is recyclable for the reaction in scCO2 and that the reaction rate and selectivity of the hydroformylation are much higher than those in the organic solvents.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	1381-1169
関連情報	URI http://www.sciencedirect.com/science/journal/13811169
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.molcata.2006.12.032