Self-assembly of mixed-valence and heterometallic metallocycles: efficient catalysts for the oxidation of alcohols to aldehydes in ambient air

Two mixed-valence Cu II /Cu I and two heterometallic Cu II /Ag I metallocycles have been synthesized by the assembly of designed metalloligands and Cu I /Ag I ions, respectively. The Cu II /Cu I metallocycle can catalyze the oxidation of alcohols to aldehydes mediated by a co-catalyst, TEMPO (2,2,6,...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2020-06, Vol.49 (22), p.734-738
Main Authors: Lai, Ya-Liang, Wang, Xue-Zhi, Dai, Rui-Rong, Huang, Yong-Liang, Zhou, Xian-Chao, Zhou, Xiao-Ping, Li, Dan
Format: Article
Language:English
Subjects:
Alcohols
Aldehydes
Catalysts
Crystallography
Oxidation
Oxidizing agents
Self-assembly
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Summary:Two mixed-valence Cu II /Cu I and two heterometallic Cu II /Ag I metallocycles have been synthesized by the assembly of designed metalloligands and Cu I /Ag I ions, respectively. The Cu II /Cu I metallocycle can catalyze the oxidation of alcohols to aldehydes mediated by a co-catalyst, TEMPO (2,2,6,6-tetramethylpiperdine-1-oxyl), with ambient air as an oxidant, while the Cu II /Ag I metallocycle has no catalytic effect. Two mixed-valence Cu II /Cu I and two heterometallic Cu II /Ag I metallocycles have been synthesized by the assembly of designed metalloligands and Cu I /Ag I ions, respectively.
ISSN:1477-9226
1477-9234
DOI:10.1039/d0dt01340d