Journal
JOURNAL OF CATALYSIS
Volume 348, Issue -, Pages 160-167Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2017.02.017
Keywords
Carboxylic acids; Copper; Catalysis; Oxidative cleavage; Molecular oxygen
Categories
Funding
- National Natural Science Foundation of China [21603219, 21273231]
- DICP [DICP ZZBS201613]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB17020300]
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Selective oxidative cleavage of C-C bond is pivotal for producing functionalized molecules, useful for organic synthesis and biomass utilization. We herein report the oxidative C(OH)-C bond cleavage of secondary alcohols to acids over a copper/l, 10-phenanthroline complex with molecular oxygen as the oxidant. A wide range of secondary alcohols are converted into acids with up to 98% yields. More interestingly, it is effective for breaking up lignin model systems into acids, which is rarely achieved in previous studies. Density functional theory (DFT) calculations indicate a copper-oxo-bridged oxygen dimer is the active species for the C(OH)-C bond cleavage which is the rate-determining step for C-C bond. (C) 2017 Elsevier Inc. All rights reserved.
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