Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-01-10

Journal: CATALYSIS COMMUNICATIONS

Included Journals: Scopus、EI、SCIE

Volume: 44

Issue: ,SI

Page Number: 54-56

ISSN: 1566-7367

Key Words: Thermoregulated phase-transfer catalysis; Cobalt; Higher alcohol; Internal olefin

Abstract: 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. (C) 2013 Elsevier B.V. All rights reserved.