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Thermoregulated phase-transfer cobalt catalyst for production of linear higher alcohols from C11–12 internal olefins in aqueous/organic biphasic system

Paper ID Volume ID Publish Year Pages File Format Full-Text
50256 46786 2014 3 PDF Available
Title
Thermoregulated phase-transfer cobalt catalyst for production of linear higher alcohols from C11–12 internal olefins in aqueous/organic biphasic system
Abstract

•The aqueous/organic biphasic hydroformylation of higher olefin was studied.•The thermoregulated phase-transfer cobalt complex catalysts were applied.•Linear alcohols were obtained as the main products.•A monophasic catalytic reaction combined with a biphasic catalyst separation.•Easy recovery and efficient recycling of the cobalt catalyst were realized.

The thermoregulated phase-transfer cobalt catalyst, composed of a polyethylene glycol tailed phosphine ligand and cobalt carbonyl, has been applied for the conversion of normal C11–12 internal olefins into linear higher alcohols via hydroformylation and hydrogenation in an aqueous/organic biphasic system. Good catalyst activity (TOF = 2.2 h− 1) in this biphasic system was obtained which was as high as that in the homogeneous system where a cobalt catalyst was modified by a lipophilic phosphine ligand. Easy catalyst recovery has been done by phase decanting, and the aqueous phase with the cobalt catalyst was used directly in recycling. In 4 times of recycling tests, the yield of alcohols decreased slightly, the leaching of cobalt into the organic phase was less than 2.7% each time and a total catalyst TON of around 150 was obtained.

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Keywords
Thermoregulated phase-transfer catalysis; Cobalt; Higher alcohol; Internal olefin
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Thermoregulated phase-transfer cobalt catalyst for production of linear higher alcohols from C11–12 internal olefins in aqueous/organic biphasic system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 44, 10 January 2014, Pages 54–56
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us