Octene hydroformylation by using rhodium complexes tethered onto selectively functionalized mesoporous silica and in situ high pressure IR study

Ki Chang Song; Ji Yeon Baek; Jung A. Bae; Jin Heong Yim; Young Soo Ko; Do Heui Kim; Young Kwon Park; Jong Ki Jeon

doi:10.1016/j.cattod.2010.10.065

Octene hydroformylation by using rhodium complexes tethered onto selectively functionalized mesoporous silica and in situ high pressure IR study

Ki Chang Song, Ji Yeon Baek, Jung A. Bae, Jin Heong Yim, Young Soo Ko, Do Heui Kim, Young Kwon Park, Jong Ki Jeon

School of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

SBA-15-based heterogeneous catalysts were applied to 1-octene hydroformylation. The turn over frequency over SBA-15/γ- aminopropylmethyldimethoxysilane (AEAPMDMS)/Rh catalyst with triphenylphosphine (TPP) ligand prepared by conventional post grafting method was higher than that of the homogeneous catalyst, (Rh(CH₃COO)₂)₂ with TPP. The SBA-15/AEAPMDMS/Rh catalyst can be easily recycled without rhodium loss. The molar ratio of linear to branched nonyl aldehydes was remarkably enhanced over the heterogeneous catalysts. The selectively functionalized rhodium catalyst (SBA-15/Ph₂Si(OEt)₂/AEAPMDMS/Rh), in which rhodium was selectively tethered intra-pore of SBA-15, was beneficial for improving the selectivity to linear aldehyde. In situ high pressure FT-IR analysis suggested HRh(CO)₂(PPh₃)₂ and HRh(CO)(PPh₃)₃ to be active species over the SBA-15/AEAPMDMS/Rh catalyst with TPP.

Original language	English
Pages (from-to)	561-565
Number of pages	5
Journal	Catalysis Today
Volume	164
Issue number	1
DOIs	https://doi.org/10.1016/j.cattod.2010.10.065
State	Published - 30 Apr 2011

Keywords

FT-IR
Heterogeneous rhodium catalyst
Octene hydroformylation
SBA-15

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title = "Octene hydroformylation by using rhodium complexes tethered onto selectively functionalized mesoporous silica and in situ high pressure IR study",

abstract = "SBA-15-based heterogeneous catalysts were applied to 1-octene hydroformylation. The turn over frequency over SBA-15/γ- aminopropylmethyldimethoxysilane (AEAPMDMS)/Rh catalyst with triphenylphosphine (TPP) ligand prepared by conventional post grafting method was higher than that of the homogeneous catalyst, (Rh(CH3COO)2)2 with TPP. The SBA-15/AEAPMDMS/Rh catalyst can be easily recycled without rhodium loss. The molar ratio of linear to branched nonyl aldehydes was remarkably enhanced over the heterogeneous catalysts. The selectively functionalized rhodium catalyst (SBA-15/Ph2Si(OEt)2/AEAPMDMS/Rh), in which rhodium was selectively tethered intra-pore of SBA-15, was beneficial for improving the selectivity to linear aldehyde. In situ high pressure FT-IR analysis suggested HRh(CO)2(PPh3)2 and HRh(CO)(PPh3)3 to be active species over the SBA-15/AEAPMDMS/Rh catalyst with TPP.",

keywords = "FT-IR, Heterogeneous rhodium catalyst, Octene hydroformylation, SBA-15",

author = "Song, {Ki Chang} and Baek, {Ji Yeon} and Bae, {Jung A.} and Yim, {Jin Heong} and Ko, {Young Soo} and Kim, {Do Heui} and Park, {Young Kwon} and Jeon, {Jong Ki}",

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doi = "10.1016/j.cattod.2010.10.065",

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T1 - Octene hydroformylation by using rhodium complexes tethered onto selectively functionalized mesoporous silica and in situ high pressure IR study

AU - Song, Ki Chang

AU - Baek, Ji Yeon

AU - Bae, Jung A.

AU - Yim, Jin Heong

AU - Ko, Young Soo

AU - Kim, Do Heui

AU - Park, Young Kwon

AU - Jeon, Jong Ki

PY - 2011/4/30

Y1 - 2011/4/30

N2 - SBA-15-based heterogeneous catalysts were applied to 1-octene hydroformylation. The turn over frequency over SBA-15/γ- aminopropylmethyldimethoxysilane (AEAPMDMS)/Rh catalyst with triphenylphosphine (TPP) ligand prepared by conventional post grafting method was higher than that of the homogeneous catalyst, (Rh(CH3COO)2)2 with TPP. The SBA-15/AEAPMDMS/Rh catalyst can be easily recycled without rhodium loss. The molar ratio of linear to branched nonyl aldehydes was remarkably enhanced over the heterogeneous catalysts. The selectively functionalized rhodium catalyst (SBA-15/Ph2Si(OEt)2/AEAPMDMS/Rh), in which rhodium was selectively tethered intra-pore of SBA-15, was beneficial for improving the selectivity to linear aldehyde. In situ high pressure FT-IR analysis suggested HRh(CO)2(PPh3)2 and HRh(CO)(PPh3)3 to be active species over the SBA-15/AEAPMDMS/Rh catalyst with TPP.

AB - SBA-15-based heterogeneous catalysts were applied to 1-octene hydroformylation. The turn over frequency over SBA-15/γ- aminopropylmethyldimethoxysilane (AEAPMDMS)/Rh catalyst with triphenylphosphine (TPP) ligand prepared by conventional post grafting method was higher than that of the homogeneous catalyst, (Rh(CH3COO)2)2 with TPP. The SBA-15/AEAPMDMS/Rh catalyst can be easily recycled without rhodium loss. The molar ratio of linear to branched nonyl aldehydes was remarkably enhanced over the heterogeneous catalysts. The selectively functionalized rhodium catalyst (SBA-15/Ph2Si(OEt)2/AEAPMDMS/Rh), in which rhodium was selectively tethered intra-pore of SBA-15, was beneficial for improving the selectivity to linear aldehyde. In situ high pressure FT-IR analysis suggested HRh(CO)2(PPh3)2 and HRh(CO)(PPh3)3 to be active species over the SBA-15/AEAPMDMS/Rh catalyst with TPP.

KW - FT-IR

KW - Heterogeneous rhodium catalyst

KW - Octene hydroformylation

KW - SBA-15

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JO - Catalysis Today

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Octene hydroformylation by using rhodium complexes tethered onto selectively functionalized mesoporous silica and in situ high pressure IR study

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